WPF progressbar style is blocky? - wpf

I'm using an indeterminate progressbar in my application and I get this bad animation of a series of blocks running horizontally. Isn't there a better style available like vista or windows 7?

Your progress bar has a style that corresponds to your current windows theme. If you run your application on Windows 7 with an Aero theme your progress bar will look accordingly.
If you want it to look always the same (no matter what windows theme is selected) you will need to define your own style for the progress bar.
Here is the style from the Aero Normal Color theme:
<LinearGradientBrush x:Key="ProgressBarBorderBrush"
EndPoint="0,1"
StartPoint="0,0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#B2B2B2"
Offset="0"/>
<GradientStop Color="#8C8C8C"
Offset="1"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarBackground"
EndPoint="1,0"
StartPoint="0,0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#BABABA"
Offset="0"/>
<GradientStop Color="#C7C7C7"
Offset="0.5"/>
<GradientStop Color="#BABABA"
Offset="1"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarTopHighlight"
StartPoint="0,0"
EndPoint="0,1">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#80FFFFFF"
Offset="0.05"/>
<GradientStop Color="#00FFFFFF"
Offset="0.25"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarGlassyHighlight"
StartPoint="0,0"
EndPoint="0,1">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#50FFFFFF"
Offset="0.5385"/>
<GradientStop Color="#00FFFFFF"
Offset="0.5385"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarIndicatorGlassyHighlight"
StartPoint="0,0"
EndPoint="0,1">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#90FFFFFF"
Offset="0.5385"/>
<GradientStop Color="#00FFFFFF"
Offset="0.5385"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<RadialGradientBrush x:Key="ProgressBarIndicatorLightingEffectLeft"
RadiusX="1"
RadiusY="1"
RelativeTransform="1,0,0,1,0.5,0.5">
<RadialGradientBrush.GradientStops>
<GradientStop Color="#60FFFFC4"
Offset="0"/>
<GradientStop Color="#00FFFFC4"
Offset="1"/>
</RadialGradientBrush.GradientStops>
</RadialGradientBrush>
<LinearGradientBrush x:Key="ProgressBarIndicatorLightingEffect"
StartPoint="0,1"
EndPoint="0,0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#60FFFFC4"
Offset="0"/>
<GradientStop Color="#00FFFFC4"
Offset="1"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<RadialGradientBrush x:Key="ProgressBarIndicatorLightingEffectRight"
RadiusX="1"
RadiusY="1"
RelativeTransform="1,0,0,1,-0.5,0.5">
<RadialGradientBrush.GradientStops>
<GradientStop Color="#60FFFFC4"
Offset="0"/>
<GradientStop Color="#00FFFFC4"
Offset="1"/>
</RadialGradientBrush.GradientStops>
</RadialGradientBrush>
<LinearGradientBrush x:Key="ProgressBarIndicatorDarkEdgeLeft"
StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#0C000000"
Offset="0"/>
<GradientStop Color="#20000000"
Offset="0.3"/>
<GradientStop Color="#00000000"
Offset="1"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarIndicatorDarkEdgeRight"
StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#00000000"
Offset="0"/>
<GradientStop Color="#20000000"
Offset="0.7"/>
<GradientStop Color="#0C000000"
Offset="1"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill"
StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStop Color="#00FFFFFF"
Offset="0"/>
<GradientStop Color="#60FFFFFF"
Offset="0.4"/>
<GradientStop Color="#60FFFFFF"
Offset="0.6"/>
<GradientStop Color="#00FFFFFF"
Offset="1"/>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
<Style x:Key="{x:Type ProgressBar}"
TargetType="{x:Type ProgressBar}">
<Setter Property="Foreground"
Value="#01D328"/>
<Setter Property="Background"
Value="{StaticResource ProgressBarBackground}"/>
<Setter Property="BorderBrush"
Value="{StaticResource ProgressBarBorderBrush}"/>
<Setter Property="BorderThickness"
Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ProgressBar}">
<Grid Name="TemplateRoot"
SnapsToDevicePixels="true">
<Rectangle Fill="{TemplateBinding Background}"
RadiusX="2"
RadiusY="2"/>
<Border Background="{StaticResource ProgressBarGlassyHighlight}"
Margin="1"
CornerRadius="2"/>
<Border BorderBrush="#80FFFFFF"
Background="{StaticResource ProgressBarTopHighlight}"
BorderThickness="1,0,1,1"
Margin="1"/>
<Rectangle Name="PART_Track"
Margin="1"/>
<Decorator x:Name="PART_Indicator"
HorizontalAlignment="Left"
Margin="1">
<Grid Name="Foreground">
<Rectangle x:Name="Indicator"
Fill="{TemplateBinding Foreground}"/>
<Grid x:Name="Animation" ClipToBounds="true">
<Rectangle x:Name="PART_GlowRect" Width="100"
Fill="{StaticResource ProgressBarIndicatorAnimatedFill}"
Margin="-100,0,0,0"
HorizontalAlignment="Left">
</Rectangle>
</Grid>
<Grid x:Name="Overlay">
<Grid.ColumnDefinitions>
<ColumnDefinition MaxWidth="15"/>
<ColumnDefinition Width="0.1*"/>
<ColumnDefinition MaxWidth="15"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Rectangle x:Name="LeftDark"
Grid.RowSpan="2"
Fill="{StaticResource ProgressBarIndicatorDarkEdgeLeft}"
RadiusX="1"
RadiusY="1"
Margin="1,1,0,1"/>
<Rectangle x:Name="RightDark"
Grid.RowSpan="2"
Grid.Column="2"
RadiusX="1"
RadiusY="1"
Fill="{StaticResource ProgressBarIndicatorDarkEdgeRight}"
Margin="0,1,1,1"/>
<Rectangle x:Name="LeftLight"
Grid.Column="0"
Grid.Row="2"
Fill="{StaticResource ProgressBarIndicatorLightingEffectLeft}"/>
<Rectangle x:Name="CenterLight"
Grid.Column="1"
Grid.Row="2"
Fill="{StaticResource ProgressBarIndicatorLightingEffect}"/>
<Rectangle x:Name="RightLight"
Grid.Column="2"
Grid.Row="2"
Fill="{StaticResource ProgressBarIndicatorLightingEffectRight}"/>
<Border x:Name="Highlight1"
Grid.RowSpan="2"
Grid.ColumnSpan="3"
Background="{StaticResource ProgressBarIndicatorGlassyHighlight}"/>
<Border x:Name="Highlight2"
Grid.RowSpan="2"
Grid.ColumnSpan="3"
Background="{StaticResource ProgressBarTopHighlight}"/>
</Grid>
</Grid>
</Decorator>
<Border BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}"
CornerRadius="2"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="Orientation"
Value="Vertical">
<Setter TargetName="TemplateRoot"
Property="LayoutTransform">
<Setter.Value>
<RotateTransform Angle="-90"/>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsIndeterminate"
Value="true">
<Setter TargetName="LeftDark"
Property="Visibility"
Value="Collapsed"/>
<Setter TargetName="RightDark"
Property="Visibility"
Value="Collapsed"/>
<Setter TargetName="LeftLight"
Property="Visibility"
Value="Collapsed"/>
<Setter TargetName="CenterLight"
Property="Visibility"
Value="Collapsed"/>
<Setter TargetName="RightLight"
Property="Visibility"
Value="Collapsed"/>
<Setter TargetName="Indicator"
Property="Visibility"
Value="Collapsed"/>
</Trigger>
<Trigger Property="IsIndeterminate"
Value="false">
<Setter TargetName="Animation"
Property="Background"
Value="#80B5FFA9"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Put this code in the Themes/Generic.xaml file in your application and your progress bars will always have this style.

This is another one... very simple flat progress bar for IsInderminate mode-
<ControlTemplate x:Key="CustomProgressBar" TargetType="ProgressBar" >
<Grid Name="TemplateRoot" SnapsToDevicePixels="True">
<Rectangle RadiusX="2" RadiusY="2" Fill="Transparent" />
<Border CornerRadius="0,0,0,0" Margin="1,1,1,1">
<Border.Background>
<SolidColorBrush Color="Transparent"/>
</Border.Background>
</Border>
<Border BorderThickness="0,0,0,0" BorderBrush="Transparent" Margin="1,1,1,1">
<Border.Background>
<SolidColorBrush Color="Transparent"/>
</Border.Background>
</Border>
<Rectangle Name="PART_Track" Margin="1,1,1,1" />
<Decorator Name="PART_Indicator" Margin="1,1,1,1" HorizontalAlignment="Left">
<Grid Name="Foreground">
<Rectangle Fill="Transparent" Name="Indicator" />
<Grid Name="Animation" ClipToBounds="True">
<Border Name="PART_GlowRect" Width="100" Margin="0,0,0,0" HorizontalAlignment="Left" Background="LightBlue"/>
</Grid>
<Grid Name="Overlay">
</Grid>
</Grid>
</Decorator>
<Border BorderThickness="0" CornerRadius="0,0,0,0" BorderBrush="Transparent" />
</Grid>
</ControlTemplate>

This is a custom progress bar I made from Suneet's example, but with IsIndeterminate animation working in .NET 3.5 :
<Style x:Key="{x:Type ProgressBar}" TargetType="{x:Type ProgressBar}">
<Setter Property="Foreground" Value="#54bdcd"/>
<Setter Property="Background" Value="#000000"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ProgressBar}">
<Grid Name="TemplateRoot" SnapsToDevicePixels="true">
<Rectangle Fill="{TemplateBinding Background}"/>
<Rectangle Name="PART_Track" Margin="0"/>
<Decorator x:Name="PART_Indicator" HorizontalAlignment="Left" Margin="0">
<Grid Name="Foreground">
<Rectangle Fill="{TemplateBinding Foreground}" Name="Indicator" />
<Grid Name="Animation" ClipToBounds="True">
<Border Name="PART_GlowRect" Margin="0,0,0,0" HorizontalAlignment="Left" Background="{TemplateBinding Foreground}"/>
</Grid>
<Grid Name="Overlay">
</Grid>
</Grid>
</Decorator>
<Border BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsIndeterminate" Value="true">
<Setter TargetName="Indicator" Property="Fill" Value="Transparent" />
<Setter TargetName="PART_GlowRect" Property="Width" Value="100" />
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<ThicknessAnimation
Storyboard.TargetName="PART_GlowRect"
Storyboard.TargetProperty="Margin"
From="-50,0,0,0" To="400,0,0,0" Duration="0:0:2"
AutoReverse="True" RepeatBehavior="Forever" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
This is kinda a hack because I move the indeterminate bar back and forth by changing its marginleft value, but in my case it was affordable because my progress bar was a fixed width.
If you have a better idea, feel free to change the storyboard part.
This page helped me a lot.

Here is another one that supports normal and intermediate mode:
<Style TargetType="{x:Type ProgressBar}">
<Setter Property="Foreground" Value="#1BA1E2"/>
<Setter Property="Background" Value="#EEEEEE"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ProgressBar}">
<Grid Name="TemplateRoot" SnapsToDevicePixels="true">
<Rectangle Fill="{TemplateBinding Background}"/>
<Rectangle Name="PART_Track" Margin="0"/>
<Decorator x:Name="PART_Indicator" HorizontalAlignment="Left" Margin="0">
<Grid Name="Foreground">
<Rectangle Fill="{TemplateBinding Foreground}" Name="Indicator" />
<Grid x:Name="Animation" ClipToBounds="true" Visibility="Hidden">
<Rectangle Fill="{TemplateBinding Background}" Name="HiderPre" Margin="0,0,50,0">
<Rectangle.RenderTransform>
<ScaleTransform x:Name="HiderPreTransform" ScaleX="0"/>
</Rectangle.RenderTransform>
</Rectangle>
<Rectangle Fill="{TemplateBinding Background}" Name="HiderPost" RenderTransformOrigin="1, 0" Margin="50,0,0,0">
<Rectangle.RenderTransform>
<ScaleTransform x:Name="HiderPostTransform" ScaleX="1" />
</Rectangle.RenderTransform>
</Rectangle>
</Grid>
<Grid Name="Overlay">
</Grid>
</Grid>
</Decorator>
<Border BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsIndeterminate" Value="true">
<Setter TargetName="Animation" Property="Visibility" Value="Visible" />
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard RepeatBehavior="Forever">
<DoubleAnimation
Storyboard.TargetName="HiderPreTransform"
Storyboard.TargetProperty="(ScaleTransform.ScaleX)"
To="1"
Duration="0:00:4" AutoReverse="True"/>
<DoubleAnimation
Storyboard.TargetName="HiderPostTransform"
Storyboard.TargetProperty="(ScaleTransform.ScaleX)"
To="0"
Duration="0:00:4" AutoReverse="True"/>
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Foreground" Value="Gray" />
</Trigger>
</Style.Triggers>
</Style>

The simplest approach I could find is based heavily on https://stackoverflow.com/a/19737148/3195477 but even more simplified.
This produces a simple flat look:
<ProgressBar>
<ProgressBar.Template>
<ControlTemplate TargetType="ProgressBar">
<Border
BorderBrush="Black"
BorderThickness="1"
Background="LightGray"
>
<Grid x:Name="PART_Track">
<Rectangle
x:Name="PART_Indicator"
HorizontalAlignment="Left"
Fill="Blue"
/>
</Grid>
</Border>
</ControlTemplate>
</ProgressBar.Template>
</ProgressBar>
The "trick" is to just minimally replace the named parts with very simple alternatives. You don't necessarily need complex gradients etc. to improve on the default appearance, although that's a matter of opinion.

Related

Set Fill to LinearGradientBrush on Button Click

For reference, I am using this MSDN tutorial: https://msdn.microsoft.com/en-us/library/bb613545(v=vs.100).aspx
I have finished the tutorial, and I simply wanted to change the Click EventTrigger animation from the 360 spin to a simple change of the LinearGradientBrush.
My GradientStopCollections as per the tutorial. One is an altered one that I want to use in the animation when I click the button
<GradientStopCollection x:Key="MyGlassGradientStopsResource">
<GradientStop Offset="0.2" Color="WhiteSmoke" />
<GradientStop Offset="0.4" Color="Transparent" />
<GradientStop Offset="0.5" Color="WhiteSmoke" />
<GradientStop Offset="0.75" Color="Transparent" />
<GradientStop Offset="0.9" Color="WhiteSmoke" />
<GradientStop Offset="1" Color="Transparent" />
</GradientStopCollection>
<GradientStopCollection x:Key="MyRedGlassGradientStopsResource">
<GradientStop Offset="0.2" Color="IndianRed" />
<GradientStop Offset="0.4" Color="Transparent" />
<GradientStop Offset="0.5" Color="IndianRed" />
<GradientStop Offset="0.75" Color="Transparent" />
<GradientStop Offset="0.9" Color="IndianRed" />
<GradientStop Offset="1" Color="Transparent" />
</GradientStopCollection>
<LinearGradientBrush x:Key="MyGlassBrushResource"
GradientStops="{StaticResource MyGlassGradientStopsResource}"
Opacity="0.75"
StartPoint="0,0"
EndPoint="1,1" />
<LinearGradientBrush x:Key="MyRedGlassBrushResource"
GradientStops="{StaticResource MyRedGlassGradientStopsResource}"
Opacity="0.75"
StartPoint="0,0"
EndPoint="1,1" />
The button itself. The rectangle being affected is the glassCube rectangle.
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="{StaticResource GrayBlueGradientBrush}" />
<Setter Property="Width" Value="90" />
<Setter Property="Margin" Value="10" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid Width="{TemplateBinding Width}"
Height="{TemplateBinding Height}"
ClipToBounds="True">
<!-- Outer rectangle with rounded corners -->
<Rectangle x:Name="outerRectangle"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Fill="Transparent"
RadiusX="20"
RadiusY="20"
Stroke="{TemplateBinding Background}"
StrokeThickness="5" />
<!-- Inner rectangle with rouded corners -->
<Rectangle x:Name="innerRectangle"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Fill="{TemplateBinding Background}"
RadiusX="20"
RadiusY="20"
Stroke="Transparent"
StrokeThickness="20" />
<!-- Glass Rectangle -->
<Rectangle x:Name="glassCube"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Fill="{StaticResource MyGlassBrushResource}"
Opacity="0"
RadiusX="10"
RadiusY="10"
RenderTransformOrigin="0.5,0.5"
StrokeThickness="2">
<Rectangle.Stroke>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.0" Color="LightBlue" />
<GradientStop Offset="1.0" Color="Gray" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Rectangle.Stroke>
<!--
These tranforms have no effect as they are declared here.
The reason the transforms are included is to be targets for animation
(See later)
-->
<Rectangle.RenderTransform>
<TransformGroup>
<ScaleTransform />
<RotateTransform />
</TransformGroup>
</Rectangle.RenderTransform>
<!-- A BevelBitmapEffect if applied to give the button a "Bevelled" look -->
<Rectangle.BitmapEffect>
<BevelBitmapEffect />
</Rectangle.BitmapEffect>
</Rectangle>
<!-- Present content (text) of the button -->
<DockPanel Name="myContentPresenterDockPanel">
<ContentPresenter x:Name="myContentPresenter"
Margin="20"
Content="{TemplateBinding Content}"
TextBlock.Foreground="Black" />
</DockPanel>
</Grid>
</ControlTemplate>
<!---Snipped the triggers-->
</Setter.Value>
And this is the trigger I am trying to use to change the Fill of the glassCube rectangle from the MyGlassGradientStopsResource brush to the MyGlassGradientStopsResource brush.
<EventTrigger RoutedEvent="Button.Click">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.5"
Storyboard.TargetName="glassCube"
Storyboard.TargetProperty="Rectangle.Fill"
To="{StaticResource MyRedGlassBrushResource}"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
However, trying to do this gives me an XAMLParseException. The error in the error list shows as An object of the type "System.Windows.Media.LinearGradientBrush" cannot be applied to a property that expects the type "System.Nullable`1[[System.Windows.Media.Color, PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]".
Any idea what I might be doing wrong? I've tried finding out how to change a Fill to a different LinearGradientBrush in an EventTrigger, but to no avail. I may just suck at wording my searches, or at searching in general. Any help is greatly appreciated
I did some modification of your style. Also, i fixed your Storyboard.
It should now work properly.
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="{StaticResource GrayBlueGradientBrush}" />
<Setter Property="Width" Value="90" />
<Setter Property="Margin" Value="10" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" ClipToBounds="True">
<Rectangle x:Name="outerRectangle" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Fill="Transparent" RadiusX="20" RadiusY="20" Stroke="{TemplateBinding Background}" StrokeThickness="5" />
<Rectangle x:Name="innerRectangle" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Fill="{TemplateBinding Background}" RadiusX="20" RadiusY="20" Stroke="Transparent" StrokeThickness="20" />
<Rectangle x:Name="glassCube" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Opacity="1" RadiusX="10" RadiusY="10" RenderTransformOrigin="0.5,0.5" StrokeThickness="2">
<Rectangle.Style>
<Style TargetType="Rectangle">
<Setter Property="Fill" Value="{StaticResource MyGlassBrushResource}"></Setter>
</Style>
</Rectangle.Style>
<Rectangle.Stroke>
<LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.0" Color="LightBlue" />
<GradientStop Offset="1.0" Color="Gray" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Rectangle.Stroke>
<Rectangle.RenderTransform>
<TransformGroup>
<ScaleTransform />
<RotateTransform />
</TransformGroup>
</Rectangle.RenderTransform>
<!-- A BevelBitmapEffect if applied to give the button a "Bevelled" look -->
<Rectangle.BitmapEffect>
<BevelBitmapEffect />
</Rectangle.BitmapEffect>
</Rectangle>
<!-- Present content (text) of the button -->
<DockPanel Name="myContentPresenterDockPanel" HorizontalAlignment="Center">
<ContentPresenter x:Name="myContentPresenter" Content="{TemplateBinding Content}" TextBlock.Foreground="Black" />
</DockPanel>
</Grid>
<ControlTemplate.Triggers>
<EventTrigger RoutedEvent="Button.Click">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="glassCube" Storyboard.TargetProperty="Fill" Duration="0:0:0.5" BeginTime="0">
<ObjectAnimationUsingKeyFrames.KeyFrames>
<DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{StaticResource MyRedGlassBrushResource}" />
</ObjectAnimationUsingKeyFrames.KeyFrames>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Note
You cannot set a Brush as ColorAnimation. Use a ObjectAnimationUsingKeyFrames instead. If you still need a BrushAnimation, have a look here

Adding additional controls above a ComboBox's ItemsPanel

I want to make a searchable ComboBox, with the search box being a TextBox that appears above the ItemsPanel when the ComboBox dropdown is expanded. I think I need to make a custom control to achieve the search functionality, but first I'm just trying to get the TextBox to show up using a normal ComboBox. Here's my current attempt, which is generating an exception when I try to expand the dropdown:
<Style x:Key="FilteredComboBox" TargetType="ComboBox">
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<StackPanel>
<TextBox/>
<StackPanel IsItemsHost="True"
Orientation="Horizontal"
VerticalAlignment="Center"
HorizontalAlignment="Center"/>
</StackPanel>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
</Style>
The exception this is generating is:
Cannot explicitly modify Children collection of Panel used as ItemsPanel for ItemsControl. ItemsControl generates child elements for Panel.
I'm pretty sure there's a way to make this do what I want, but after several hours of googling and trial and error my head is now spinning. Any help would be greatly appreciated!
While the responses I got to this were all along the right track, I didn't think any of them really answered my question well enough to be marked as the solution. What I ended up doing was deriving a custom control from the ComboBox (right-click on a ComboBox in the designer and choose Edit Template -> Edit a Copy, this generates a whole bunch of XAML code for the ComboBox template which I copied into the Generic.xaml file of the custom control project I made). I then edited the Popup portion of the generated XAML code to add a WatermarkTextBox (from the Extended WPF Toolkit) above the ItemsPresenter like so:
<Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
<Themes:SystemDropShadowChrome x:Name="Shdw" Color="Transparent" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=MainGrid}">
<Border x:Name="DropDownBorder" BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}">
<ScrollViewer x:Name="DropDownScrollViewer">
<Grid RenderOptions.ClearTypeHint="Enabled">
<Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
<Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=DropDownBorder}" Height="{Binding ActualHeight, ElementName=DropDownBorder}" Width="{Binding ActualWidth, ElementName=DropDownBorder}"/>
</Canvas>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<xtk:WatermarkTextBox Grid.Row="0"
Visibility="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource booleanToVisibilityConverter}}"
Watermark="Type here to filter..."
Text="{Binding SearchFilter, RelativeSource={RelativeSource TemplatedParent}, UpdateSourceTrigger=PropertyChanged}">
</xtk:WatermarkTextBox>
<ItemsPresenter x:Name="ItemsPresenter" Grid.Row="1" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Grid>
</Grid>
</ScrollViewer>
</Border>
</Themes:SystemDropShadowChrome>
</Popup>
The SearchFilter property I'm binding the Text to is a property in my custom control's code-behind which then performs the actual filtering of the values in the ComboBox. It's a little beyond the scope of my original question but here's how I'm doing the filtering in case anyone is curious:
public class SearchableComboBox : ComboBox
{
public const string SearchFilterPropertyName = "SearchFilter";
public readonly static DependencyProperty SearchFilterProperty;
public string SearchFilter
{
get { return (string)GetValue(SearchFilterProperty); }
set { SetValue(SearchFilterProperty, value); }
}
static SearchableComboBox()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(SearchableComboBox), new FrameworkPropertyMetadata(typeof(SearchableComboBox)));
SearchFilterProperty = DependencyProperty.Register(SearchFilterPropertyName, typeof(string), typeof(SearchableComboBox),
new PropertyMetadata(string.Empty, new PropertyChangedCallback(SearchFilter_PropertyChanged)));
}
private static void SearchFilter_PropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
((SearchableComboBox)d).RefreshFilter();
}
private void RefreshFilter()
{
if (this.ItemsSource != null)
{
ICollectionView view = CollectionViewSource.GetDefaultView(this.ItemsSource);
view.Refresh();
}
}
private bool FilterPredicate(object value)
{
if (value == null)
return false;
if (string.IsNullOrEmpty(SearchFilter))
return true;
return value.ToString().Contains(SearchFilter, StringComparison.CurrentCultureIgnoreCase);
}
protected override void OnItemsSourceChanged(IEnumerable oldValue, IEnumerable newValue)
{
if (newValue != null)
{
ICollectionView view = CollectionViewSource.GetDefaultView(newValue);
view.Filter += this.FilterPredicate;
}
if (oldValue != null)
{
ICollectionView view = CollectionViewSource.GetDefaultView(oldValue);
view.Filter -= this.FilterPredicate;
}
base.OnItemsSourceChanged(oldValue, newValue);
}
You can use "ComboBox ControlTemplate" from msdn.
You must edit Popup from this style. I added there Grid control with two rows. In the first row I added TextBox, I think that better option will be here WatermarkTextBox from Extended WPF Toolkit (WatermarkTextBox). In the second row you have ScrollViewer with your items.
The TextBox from first row is always visible, when ComboBox has a lot of items only these elements will be in scroll content.
Below is complete example:
<!-- Fill Brushes -->
<LinearGradientBrush x:Key="NormalBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="LightBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalLightBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DarkBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#BBB" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="0.1"/>
<GradientStop Color="#EEE" Offset="0.9"/>
<GradientStop Color="#FFF" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledForegroundBrush" Color="#888" />
<SolidColorBrush x:Key="DisabledBackgroundBrush" Color="#EEE" />
<SolidColorBrush x:Key="WindowBackgroundBrush" Color="#FFF" />
<SolidColorBrush x:Key="SelectedBackgroundBrush" Color="#DDD" />
<!-- Border Brushes -->
<LinearGradientBrush x:Key="NormalBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBorderBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DefaultedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#777" Offset="0.0"/>
<GradientStop Color="#000" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#444" Offset="0.0"/>
<GradientStop Color="#888" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledBorderBrush" Color="#AAA" />
<SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />
<SolidColorBrush x:Key="LightBorderBrush" Color="#AAA" />
<!-- Miscellaneous Brushes -->
<SolidColorBrush x:Key="GlyphBrush" Color="#444" />
<SolidColorBrush x:Key="LightColorBrush" Color="#DDD" />
<ControlTemplate x:Key="ComboBoxToggleButton" TargetType="ToggleButton">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="20" />
</Grid.ColumnDefinitions>
<Border
x:Name="Border"
Grid.ColumnSpan="2"
CornerRadius="2"
Background="{StaticResource NormalBrush}"
BorderBrush="{StaticResource NormalBorderBrush}"
BorderThickness="1" />
<Border
Grid.Column="0"
CornerRadius="2,0,0,2"
Margin="1"
Background="{StaticResource WindowBackgroundBrush}"
BorderBrush="{StaticResource NormalBorderBrush}"
BorderThickness="0,0,1,0" />
<Path
x:Name="Arrow"
Grid.Column="1"
Fill="{StaticResource GlyphBrush}"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Data="M 0 0 L 4 4 L 8 0 Z"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsMouseOver" Value="true">
<Setter TargetName="Border" Property="Background" Value="{StaticResource DarkBrush}" />
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="true">
<Setter TargetName="Border" Property="Background" Value="{StaticResource PressedBrush}" />
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter TargetName="Border" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
<Setter TargetName="Border" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
<Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
<Setter TargetName="Arrow" Property="Fill" Value="{StaticResource DisabledForegroundBrush}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
<ControlTemplate x:Key="ComboBoxTextBox" TargetType="TextBox">
<Border x:Name="PART_ContentHost" Focusable="False" Background="{TemplateBinding Background}" />
</ControlTemplate>
<Style x:Key="{x:Type ComboBox}" TargetType="ComboBox">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="MinWidth" Value="120"/>
<Setter Property="MinHeight" Value="20"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ComboBox">
<Grid>
<ToggleButton
Name="ToggleButton"
Template="{StaticResource ComboBoxToggleButton}"
Grid.Column="2"
Focusable="false"
IsChecked="{Binding Path=IsDropDownOpen,Mode=TwoWay,RelativeSource={RelativeSource TemplatedParent}}"
ClickMode="Press">
</ToggleButton>
<ContentPresenter
Name="ContentSite"
IsHitTestVisible="False"
Content="{TemplateBinding SelectionBoxItem}"
ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}"
ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}"
Margin="3,3,23,3"
VerticalAlignment="Center"
HorizontalAlignment="Left" />
<TextBox x:Name="PART_EditableTextBox"
Style="{x:Null}"
Template="{StaticResource ComboBoxTextBox}"
HorizontalAlignment="Left"
VerticalAlignment="Center"
Margin="3,3,23,3"
Focusable="True"
Background="Transparent"
Visibility="Hidden"
IsReadOnly="{TemplateBinding IsReadOnly}"/>
<Popup
Name="Popup"
Placement="Bottom"
IsOpen="{TemplateBinding IsDropDownOpen}"
AllowsTransparency="True"
Focusable="False"
PopupAnimation="Slide">
<Grid
Name="DropDown"
SnapsToDevicePixels="True"
MinWidth="{TemplateBinding ActualWidth}"
MaxHeight="{TemplateBinding MaxDropDownHeight}">
<Grid.RowDefinitions>
<RowDefinition Height="30" />
<RowDefinition Height="{TemplateBinding MaxDropDownHeight}" />
</Grid.RowDefinitions>
<Border
x:Name="DropDownBorder"
Background="{StaticResource WindowBackgroundBrush}"
BorderThickness="1"
BorderBrush="{StaticResource SolidBorderBrush}"
Grid.RowSpan="2"/>
<TextBox Margin="2" VerticalAlignment="Center" />
<ScrollViewer Grid.Row="1" Margin="4,6,4,6" SnapsToDevicePixels="True">
<StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" />
</ScrollViewer>
</Grid>
</Popup>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="HasItems" Value="false">
<Setter TargetName="DropDownBorder" Property="MinHeight" Value="95"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
<Trigger SourceName="Popup" Property="Popup.AllowsTransparency" Value="true">
<Setter TargetName="DropDownBorder" Property="CornerRadius" Value="4"/>
<Setter TargetName="DropDownBorder" Property="Margin" Value="0,2,0,0"/>
</Trigger>
<Trigger Property="IsEditable"
Value="true">
<Setter Property="IsTabStop" Value="false"/>
<Setter TargetName="PART_EditableTextBox" Property="Visibility" Value="Visible"/>
<Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
</Style.Triggers>
</Style>
You are going to have a couple of problems, I think.
If you are relying on a style to show the textbox, where are you going to put the logic for that textbox? you need to extend the combobox to add that logic or make some sort of composite control.
The second problem is that the combobox by its nature closes when it loses focus. So, you have to write a some logic to change that behavior.
It's not impossible to do, I just think you need to do a lot more than create a style.
Yes it is a lot of code but this is when you should start thinking about using resource dictionaries. I do agree with the other posters that this sort of control might cause you headaches as the combobox will contract if a user isn't careful and loses focus.
<Style x:Key="MyCombo" TargetType="{x:Type ComboBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ComboBox}">
<Grid x:Name="MainGrid" SnapsToDevicePixels="true">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition MinWidth="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}" Width="0"/>
</Grid.ColumnDefinitions>
<Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
<Microsoft_Windows_Themes:SystemDropShadowChrome x:Name="Shdw" Color="Transparent" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=MainGrid}">
<Border x:Name="DropDownBorder" BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}">
<ScrollViewer x:Name="DropDownScrollViewer">
<Grid RenderOptions.ClearTypeHint="Enabled">
<StackPanel>
<TextBox>blah blah</TextBox>
<Canvas HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
<Rectangle x:Name="OpaqueRect" Fill="{Binding Background, ElementName=DropDownBorder}" Height="{Binding ActualHeight, ElementName=DropDownBorder}" Width="{Binding ActualWidth, ElementName=DropDownBorder}"/>
</Canvas>
<ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</StackPanel>
</Grid>
</ScrollViewer>
</Border>
</Microsoft_Windows_Themes:SystemDropShadowChrome>
</Popup>
<ToggleButton BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ComboBoxReadonlyToggleButton}"/>
<ContentPresenter ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Content="{TemplateBinding SelectionBoxItem}" ContentStringFormat="{TemplateBinding SelectionBoxItemStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="false" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="HasDropShadow" SourceName="PART_Popup" Value="true">
<Setter Property="Margin" TargetName="Shdw" Value="0,0,5,5"/>
<Setter Property="Color" TargetName="Shdw" Value="#71000000"/>
</Trigger>
<Trigger Property="HasItems" Value="false">
<Setter Property="Height" TargetName="DropDownBorder" Value="95"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
<Setter Property="Background" Value="#FFF4F4F4"/>
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
<Trigger Property="ScrollViewer.CanContentScroll" SourceName="DropDownScrollViewer" Value="false">
<Setter Property="Canvas.Top" TargetName="OpaqueRect" Value="{Binding VerticalOffset, ElementName=DropDownScrollViewer}"/>
<Setter Property="Canvas.Left" TargetName="OpaqueRect" Value="{Binding HorizontalOffset, ElementName=DropDownScrollViewer}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

Slow ComboBox Performance

As explained in the following article http://vbcity.com/blogs/xtab/archive/2009/12/15/wpf-using-a-virtualizingstackpanel-to-improve-combobox-performance.aspx, I use the VirtualizingStackPanel to improve the performance of my project's ComboBoxes.
And it works great ... until I apply a style to ComboBox to change the layout (I found the style here : http://msdn.microsoft.com/en-us/library/ee230084.aspx)
Here is the source code of a sample which demonstrate the matter (figuring that ItemSource propery of the ComboBox are filled with 10 000 items).
If anyone has an idea ...
<Window.Resources>
<!-- Fill Brushes -->
<LinearGradientBrush x:Key="NormalBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="LightBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalLightBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DarkBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#BBB" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="0.1"/>
<GradientStop Color="#EEE" Offset="0.9"/>
<GradientStop Color="#FFF" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledForegroundBrush" Color="Black" />
<SolidColorBrush x:Key="DisabledBackgroundBrush" Color="#E5E5E5" />
<SolidColorBrush x:Key="WindowBackgroundBrush" Color="#FFF" />
<SolidColorBrush x:Key="SelectedBackgroundBrush" Color="#DDD" />
<!-- Border Brushes -->
<LinearGradientBrush x:Key="NormalBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#AAA" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBorderBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#AAA" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DefaultedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#AAA" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#AAA" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledBorderBrush" Color="#AAA" />
<SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />
<SolidColorBrush x:Key="LightBorderBrush" Color="#AAA" />
<!-- Miscellaneous Brushes -->
<SolidColorBrush x:Key="GlyphBrush" Color="#444" />
<SolidColorBrush x:Key="LightColorBrush" Color="#DDD" />
<ControlTemplate x:Key="ComboBoxToggleButton" TargetType="ToggleButton">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="16" />
</Grid.ColumnDefinitions>
<Border x:Name="Border" Grid.ColumnSpan="2" CornerRadius="2" Background="{StaticResource NormalBrush}" BorderBrush="{StaticResource NormalBorderBrush}" BorderThickness="1" />
<Border x:Name="Border2" Grid.Column="0" CornerRadius="2,0,0,2" Margin="1" Background="{StaticResource WindowBackgroundBrush}" BorderBrush="{StaticResource NormalBorderBrush}" BorderThickness="0,0,1,0" />
<Path x:Name="Arrow" Grid.Column="1" Fill="{StaticResource GlyphBrush}" HorizontalAlignment="Center" VerticalAlignment="Center" Data="M 0 0 L 4 4 L 8 0 Z"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsMouseOver" Value="true">
<Setter TargetName="Border" Property="Background" Value="{StaticResource DarkBrush}" />
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="true">
<Setter TargetName="Border" Property="Background" Value="{StaticResource PressedBrush}" />
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter TargetName="Border" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
<Setter TargetName="Border" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
<Setter TargetName="Border2" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
<Setter TargetName="Border2" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
<Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
<Setter TargetName="Arrow" Property="Fill" Value="{StaticResource DisabledForegroundBrush}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
<ControlTemplate x:Key="ComboBoxTextBox" TargetType="TextBox">
<Border x:Name="PART_ContentHost" Focusable="False" Background="{TemplateBinding Background}" />
</ControlTemplate>
<Style x:Key="ComboBoxBaseStyle" TargetType="ComboBox">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="MinHeight" Value="20"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ComboBox">
<Grid>
<ToggleButton Name="ToggleButton" Template="{StaticResource ComboBoxToggleButton}" Grid.Column="2" Focusable="false" IsChecked="{Binding Path=IsDropDownOpen,Mode=TwoWay,RelativeSource={RelativeSource TemplatedParent}}" ClickMode="Press">
</ToggleButton>
<ContentPresenter Name="ContentSite" IsHitTestVisible="False" Content="{TemplateBinding SelectionBoxItem}" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Margin="3,3,23,3" VerticalAlignment="Center" HorizontalAlignment="Left" />
<TextBox x:Name="PART_EditableTextBox" Style="{x:Null}" Template="{StaticResource ComboBoxTextBox}" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="3,3,23,3" Focusable="True" Background="Transparent" Visibility="Hidden" IsReadOnly="{TemplateBinding IsReadOnly}"/>
<Popup Name="Popup" Placement="Bottom" IsOpen="{TemplateBinding IsDropDownOpen}" AllowsTransparency="True" Focusable="False" PopupAnimation="Slide">
<Grid Name="DropDown" SnapsToDevicePixels="True" MinWidth="{TemplateBinding ActualWidth}" MaxHeight="{TemplateBinding MaxDropDownHeight}">
<Border x:Name="DropDownBorder" Background="{StaticResource WindowBackgroundBrush}" BorderThickness="1" BorderBrush="{StaticResource SolidBorderBrush}"/>
<ScrollViewer Margin="4,6,4,6" SnapsToDevicePixels="True">
<StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" />
</ScrollViewer>
</Grid>
</Popup>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="HasItems" Value="false">
<Setter TargetName="DropDownBorder" Property="MinHeight" Value="95"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
<Trigger SourceName="Popup" Property="Popup.AllowsTransparency" Value="true">
<Setter TargetName="DropDownBorder" Property="CornerRadius" Value="4"/>
<Setter TargetName="DropDownBorder" Property="Margin" Value="0,2,0,0"/>
</Trigger>
<Trigger Property="IsEditable" Value="true">
<Setter Property="IsTabStop" Value="false"/>
<Setter TargetName="PART_EditableTextBox" Property="Visibility" Value="Visible"/>
<Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
</Style.Triggers>
</Style>
</Window.Resources>
<StackPanel>
<ComboBox x:Name="CustomerComboBox_WithoutStyle" SelectedValuePath="Id" DisplayMemberPath="Text" >
<ComboBox.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel />
</ItemsPanelTemplate>
</ComboBox.ItemsPanel>
</ComboBox>
<ComboBox x:Name="CustomerComboBox_WithStyle" SelectedValuePath="Id" DisplayMemberPath="Text" Style="{StaticResource ComboBoxBaseStyle}" >
<ComboBox.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel />
</ItemsPanelTemplate>
</ComboBox.ItemsPanel>
</ComboBox>
</StackPanel>
The problem of your style is that it does not use any kind of UI Virtualization.
Try replacing the StackPanel with a VirtualizingStackpanel and set the VirtualizationMode to Recycle and you will see a huge performance boost.
Your approach forces WPF to realize a container and FrameworkElement for each of your 10k items, which takes an eternity as you have only 1 UI thread.
Just replace
<StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" />
with
<VirtualizingStackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" />
and see if it gets faster.
To be more precise, you override the ItemsPanel in your derived styles, but have no "ItemsPresenter" in the base style. Instead to use the StackPanel "hardcoded"
So many items probably is the result of a (UI) design flaw.
Try using a listbox or multiple combo boxes where the first combo box is a category and second is a sub category of the first.
having 10000 items in a combox is not very good design. MaxDropDownItems might be able to help you as less rendering is required. (this is the number of visible items shown when clicking the dropdown)
But, you should consider using a listbox. When you apply a listbox you should uses pages and on each page have 1000 records. Or use a search box

Visual corruption around rounded corners

In my WPF app, I see these smear-like visual corruptions, especially around rounded corners. Notice the problem with the upper corners of the button.
I tried the following but the issue persists:
SnapToDevicePixels=true
Resized and moved the app window.
Changed the screen resolution
What might be causing this?
XAML for the button:
<Button Width="Auto" Click="btnAdd_Click" Height="Auto" x:Name="btnAdd" VerticalAlignment="Center" HorizontalAlignment="Right" Focusable="False" Margin="20,0,0,0" SnapsToDevicePixels="True">
<StackPanel Orientation="Horizontal" Margin="0">
<TextBlock Text="Ekle" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="0,0,5,0"/>
<Image Source="/FideKiosk;component/Icons/right.png" MaxWidth="30" Width="15" Height="15"/>
</StackPanel>
</Button>
and then I have an implicit style in Application.Resources:
<Style TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid x:Name="grid">
<Rectangle RadiusX="10" RadiusY="10" x:Name="rectangle" Opacity="0.995">
<Rectangle.Effect>
<DropShadowEffect ShadowDepth="0" BlurRadius="0" Color="#FFC0F3AD" Opacity="0"/>
</Rectangle.Effect>
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.501,0.039" StartPoint="0.501,0.971">
<GradientStop Color="#FF346223" Offset="0.124" />
<GradientStop Color="#FF325625" Offset="0.526" />
<GradientStop Color="#FF39622B" Offset="0.534" />
<GradientStop Color="#FF367021" Offset="0" />
<GradientStop Color="#FF4A8535" Offset="0.986" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" RecognizesAccessKey="True" Margin="15" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" TargetName="grid" Value="0.5"/>
</Trigger>
<Trigger Property="IsMouseCaptureWithin" Value="True">
<Setter Property="Effect" TargetName="rectangle">
<Setter.Value>
<DropShadowEffect BlurRadius="30" Color="#FFC0F3AD" Opacity="1" ShadowDepth="0"/>
</Setter.Value>
</Setter>
<Setter Property="Fill" TargetName="rectangle">
<Setter.Value>
<LinearGradientBrush EndPoint="0.501,0.039" StartPoint="0.501,0.971">
<GradientStop Color="#FF346223" Offset="0.303"/>
<GradientStop Color="#FF325625" Offset="0.526"/>
<GradientStop Color="#FF39622B" Offset="0.534"/>
<GradientStop Color="#FF4A8535" Offset="0"/>
<GradientStop Color="#FF8AC077" Offset="0.986"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I used your code and could not find any artifacts in neither the designer nor when running the app. So unless you have more UI elements that are not in code you presented my guess is that the graphics card (hardware/driver) on your machine is causing this.
You could test this by switching to software rendering: Can I force WPF rendering tier?

Checkbox template in WPF

I encountered a situation in the application i was developing. I want to write a template for a checkbox where i should be able to disable only the tick mark box and keep the label enabled. Is this really possible. I came up with a template, but when i disable the checkbox both the label and the tick mark get disabled.
just have a look at this xaml
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="300" Width="300" >
<Window.Resources>
<Style x:Key="CheckBoxFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Border>
<Rectangle Margin="15,0,0,0" Stroke="#60000000" StrokeThickness="1" StrokeDashArray="1 2"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!-- PressedBrush is used for Pressed in Button, Radio Button, CheckBox -->
<LinearGradientBrush x:Key="PressedBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#BBB" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="0.1"/>
<GradientStop Color="#EEE" Offset="0.9"/>
<GradientStop Color="#FFF" Offset="1.0"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBorderBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#444" Offset="0.0"/>
<GradientStop Color="#888" Offset="1.0"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="NormalBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#EEE" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</LinearGradientBrush>
<SolidColorBrush x:Key="GlyphBrush" Color="#444"/>
<LinearGradientBrush x:Key="NormalBorderBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="MouseOverBrush" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</LinearGradientBrush>
<!-- Simple CheckBox -->
<Style x:Key="CheckBoxStyle1" TargetType="{x:Type CheckBox}">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="FocusVisualStyle" Value="{DynamicResource CheckBoxFocusVisual}"/>
<Setter Property="Background" Value="{DynamicResource NormalBrush}"/>
<Setter Property="BorderBrush" Value="{DynamicResource NormalBorderBrush}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CheckBox}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<!-- BulletDecorator is used to provide baseline alignment between the checkmark and the Content -->
<BulletDecorator x:Name="test" Grid.Column="0">
<BulletDecorator.Bullet>
<Grid Width="13" Height="13">
<Border x:Name="Border"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"/>
<Path x:Name="CheckMark" Stroke="{DynamicResource GlyphBrush}"
StrokeThickness="2"
SnapsToDevicePixels="False" Data="M 0 0 L 13 13 M 0 13 L 13 0"/>
</Grid>
</BulletDecorator.Bullet>
</BulletDecorator>
<ContentPresenter Grid.Column="1"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
RecognizesAccessKey="True"/>
</Grid>
<!-- This uses Visibility to hide and show the CheckMark on IsChecked -->
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="false">
<Setter Property="Visibility" Value="Collapsed" TargetName="CheckMark"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" Value="{DynamicResource MouseOverBrush}" TargetName="Border"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" Value="{DynamicResource PressedBrush}" TargetName="Border"/>
<Setter Property="BorderBrush" Value="{DynamicResource PressedBorderBrush}" TargetName="Border"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" Value="gray" TargetName="Border"/>
<Setter Property="BorderBrush" Value="black" TargetName="Border"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid x:Name="LayoutRoot">
<CheckBox HorizontalAlignment="Left"
Margin="0,5,0,0" Style="{DynamicResource CheckBoxStyle1}"
VerticalAlignment="Top" Width="182" Height="17"
Content="Disabled" IsEnabled="False" IsChecked="True" />
<CheckBox HorizontalAlignment="Left"
Margin="125,5,0,0" Style="{DynamicResource CheckBoxStyle1}"
VerticalAlignment="Top" Width="182" Height="17"
Content="Active" IsEnabled="true" />
</Grid>
I had the same problem and came up with a quite stupid solution:
<StackPanel Orientation="Vertical" >
<TextBlock Text="Set Global Edition" TextWrapping="Wrap" HorizontalAlignment="Center" />
<CheckBox x:Name="GlobalEdition" IsChecked="{Binding IsGlobal}" HorizontalAlignment="Center" />
</StackPanel>
Since the TextBlock & Checkbox are separated, changing the Checkbox state won't influence the text attached to it.
(If I remember well, a Textbox does not change its appearance if disabled, maybe you could try with a TextBox instead of a label)

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