I have a situation where i have to display the DatePicker , The problem is i am not able to see the complete month name at top, i am just able to see the first digit of december
with dots after like "D.." whereas there is enough space to show entire month name. Its because it is inheriting many style of textbox/textblock from controltemplate which i am not including.
Here is my try :
<DatePicker
FontSize="6"
SelectedDate="{x:Static sys:DateTime.Now}"
HorizontalContentAlignment="Left">
</DatePicker>
<Style TargetType="{x:Type DatePickerTextBox}" >
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<TextBox
x:Name="PART_TextBox"
HorizontalAlignment="Left"
VerticalContentAlignment="Center"
Text="{Binding Path=SelectedDate, ConverterCulture={x:Static glob:CultureInfo.InvariantCulture}, StringFormat={}{0:yyyy-MM-dd}, RelativeSource={RelativeSource AncestorType={x:Type DatePicker}}}" />
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="IsReadOnly" Value="True" />
</Style>
<Style TargetType="{x:Type DatePicker}">
<Setter Property="Background" Value="{StaticResource FlowWhiteBrush}" />
</Style>
How to fix it such that we override the previous style by rewriting in the template written above and make it's alignment in left so that all month appears? But which styles and properties to be overridden?
I need to add a space before the text, my structure is like this:
<Setter Property="Text" Value="{DynamicResource oneMatch}"/>
so the content displayed should be: " oneMatchContent"
In the past I did a similar thing using StringFormat:
<TextBlock Text="{Binding oneMatch, StringFormat=This is {0}}"/>
But I doesn't see any StringFormat on the Value for setter, any idea?
I can't be sure, since you're so secretive about the context for all this, but my best guess is that that Setter is in a Style that you're applying to a TextBlock.
If that's the case, you could use a Label instead (or any other descendant of ContentControl), and set its ContentStringFormat property as well.
<Style
x:Key="oneMatchLabelStyle"
TargetType="Label"
BasedOn="{StaticResource {x:Type Label}}"
>
<Setter Property="Content" Value="{DynamicResource oneMatch}" />
<Setter Property="ContentStringFormat" Value="This is {0}" />
<!-- Set padding to 0 so it'll look like TextBlock did in your layout -->
<Setter Property="Padding" Value="0" />
</Style>
...
<Label Style="{DynamicResource oneMatchLabelStyle}" />
If you want to add a leading space in the string resource itself, just specify a non-breaking space (Unicode U+00A0) in the XAML. The HTML character entity isn't supported in XAML, so use a hex character entity instead:
<sys:String x:Key="oneMatch"> Blah blah blah</sys:String>
And then use that resource without any special formatting.
You can get fancy with this approach :
<Window.Resources>
<sys:String x:Key="SecretKey">SecretText</sys:String>
<Style x:Key="ContentKey" TargetType="Label">
<Setter Property="Content">
<Setter.Value>
<TextBlock>
<TextBlock.Inlines>
<Run Text=" "/>
<Run Text="{DynamicResource SecretKey}"/>
</TextBlock.Inlines>
</TextBlock>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
...
<Label Style="{StaticResource ContentKey}"/>
You can use any text in Run now.
I want to have buttons with little icons as content.
The icons are defined and stored in a ResourceDictionary like this:
<Path x:Key="BackIcon" Data="F1 M 57,42L 57,34L 32.25,34L 42.25,24L 31.75,24L 17... "/>
<Path x:Key="LoadFromFileIcon" Data="F1 M 48,39L 56,39L 56,49L 63.25,49L 52,60.2... "/>
<Path x:Key="SaveToFileIcon" Data="F1 M 48,60L 56,60L 56,50L 63.25,50L 52,38.75L... "/>
Since I also need to provide Path.Fill, Path.Stretch etc. properties, I decided to make my own IconButtonStyle so I won't have to repeat the same attribute in every Path in the icon dictionary and make buttons very easily like this:
<Button Style="{StaticResource IconButtonStyle}"
Content="{StaticResource ResetIcon}"/>
This is what I came up with:
<Style x:Key="IconButtonStyle" TargetType="Button">
<Style.Resources>
<Style TargetType="Path">
<Setter Property="Fill" Value="Black"/> <!-- Default path fill. -->
<Style.Triggers>
<!-- How can I set path fill to "Red" based on the parent Button IsEnabled property? -->
</Style.Triggers>
</Style>
</Style.Resources>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="false">
<!-- ?? -->
</Trigger>
</Style.Triggers>
</Style>
My custom icon buttons have default path style defined via Style.Resources. Setting default path fill is easy but I can't figure out how to set a trigger that'll change path's fill to red when the owner button is disabled.
Is it even possible?
Okay... I guess you need to modify a few things before proceeding.
First in XAML you should use a code like this:
<Button Style="{DynamicResource IconButtonStyle}" IsEnabled="False" Content="{StaticResource _rect}">
</Button>
In this case I used a rectangle which I defined in Resources. this is the code for rectangle:
<Rectangle Width="10" Height="10" Style="{StaticResource ContentButtonPathStyle}" x:Key="_rect"></Rectangle>
you will obviously use your paths instead of rectangles...
You notice that the Style is set to ContentButtonPathStyle .
This is the code for that style:
<Style x:Key="ContentButtonPathStyle" TargetType="{x:Type Rectangle}">
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource=
{RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsEnabled}" Value="False">
<Setter Property="Fill" Value="Red"/>
</DataTrigger>
<DataTrigger Binding="{Binding RelativeSource=
{RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsEnabled}" Value="True">
<Setter Property="Fill" Value="Black"/>
</DataTrigger>
</Style.Triggers>
</Style>
Note that you must define ContentButtonPathStyle before your rectangle (paths).
The last thing is that you don't even need to specify a Style for your button. unless you need it for other purposes.
Step by step, I'm optimizing my xaml to create a custom AppBarButton from an image. I've gone from a complete custom xaml layout to using a few lines using styles, but I know I can simplify this one more step.
Here's what I currently have:
<Style x:Key="PrintAppBarButtonStyle" TargetType="ButtonBase" BasedOn="{StaticResource AppBarButtonStyle}">
<Setter Property="AutomationProperties.AutomationId" Value="PrintAppBarButton"/>
<Setter Property="AutomationProperties.Name" Value="Print"/>
</Style>
<Button Style="{StaticResource PrintAppBarButtonStyle}">
<ContentControl>
<Image Source="/Assets/AppBar/appbar_printer_dark.png"/>
</ContentControl>
</Button>
I know I can move the image source into the style definition, but I haven't been able to get this to work. After reading about the AppBarButton class, I tried to set my TargetType to AppBarButton and then set an Icon property, but was unsuccessful. Something like the following:
<Style x:Key="PrintAppBarButtonStyle" TargetType="AppBarButton" BasedOn="{StaticResource AppBarButtonStyle}">
<Setter Property="AutomationProperties.AutomationId" Value="PrintAppBarButton"/>
<Setter Property="AutomationProperties.Name" Value="Print"/>
<Setter Property="Icon">
<Setter.Value>
// here it's expecting an IconElement
</Setter.Value>
</Setter>
</Style>
<Button Style="{StaticResource PrintAppBarButtonStyle}"/>
Any tips?
The Icon property does not accept an image -- if you need to use an image, stick with the Content property. That can also be styled:
<Style x:Key="PrintAppBarButtonStyle" TargetType="ButtonBase" BasedOn="{StaticResource AppBarButtonStyle}">
<Setter Property="AutomationProperties.AutomationId" Value="PrintAppBarButton"/>
<Setter Property="AutomationProperties.Name" Value="Print"/>
<Setter Property="Content">
<Setter.Value>
<ContentControl>
<Image Source="/Assets/AppBar/appbar_printer_dark.png"/>
</ContentControl>
</Setter.Value>
</Setter>
</Style>
By way of explanation, note that "ContentControl.Content" is the ContentProperty, which means that the child element gets set as "Content". Ie, this:
<Button Style="{StaticResource PrintAppBarButtonStyle}">
<ContentControl>
<Image Source="/Assets/AppBar/appbar_printer_dark.png"/>
</ContentControl>
</Button>
is just shorthand for this:
<Button Style="{StaticResource PrintAppBarButtonStyle}">
<Button.Content>
<ContentControl>
<Image Source="/Assets/AppBar/appbar_printer_dark.png"/>
</ContentControl>
</Button.Content>
</Button>
I have a Button Style with a Template containing a ContentPresenter, in which I am attempting to bind the Fill of a Path to the Foreground of a button:
<!-- This is inside the template of a button style -->
<ContentPresenter>
<ContentPresenter.Resources>
<Style TargetType="{x:Type Path}">
<Setter Property="Fill" Value="{Binding Path=Foreground, RelativeSource={RelativeSource AncestorType=Button}}"/>
</Style>
</ContentPresenter.Resources>
</ContentPresenter>
I also have a Path with no Fill set, that I can reference in the button as the content, like so:
<Button Style="{DynamicResource MyButtonStyle}" Content="{DynamicResource PathIcon}" Foreground="Blue"/>
I would expect the Path inside the button to be blue, but it isn't... it doesn't grab the foreground from the button.
How can I get the Path to bind to the color of the button?
Thank you!
P.S.:
If I put a hardcoded color in the Value (i.e. Value="Red"), the Path inside the button is red... so I know that works...
<ContentPresenter>
<ContentPresenter.Resources>
<Style TargetType="{x:Type Path}">
<Setter Property="Fill" Value="Red"/>
</Style>
</ContentPresenter.Resources>
</ContentPresenter>
Edit:
Here is the complete Style and ControlTemplate:
<Style x:Key="Button_Style" TargetType="{x:Type Button}">
<Setter Property="Foreground" Value="{StaticResource White_Brush}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid x:Name="grid" Background="Transparent">
<ContentPresenter>
<ContentPresenter.Resources>
<Style TargetType="{x:Type Path}">
<Setter Property="Fill" Value="{Binding Path=Foreground, RelativeSource={RelativeSource AncestorType=Button}}"/>
</Style>
</ContentPresenter.Resources>
</ContentPresenter>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<!-- Should affect Text as well as Paths in the Content property of the button! -->
<Setter Property="Foreground" Value="{StaticResource Black_Brush}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Okay, let's order:
it doesn't grab the foreground from the button.
In styles this construction:
RelativeSource={RelativeSource AncestorType=Button}
will not work, because the Style is just the collection of setters, he does not know about control, are there, specifically about the content of the visual tree. Because RelativeSource should refer to the items above in the visual tree. For this purpose, usually using DataTemplate or ControlTemplate.
If I put a hardcoded color in the Value (i.e. Value="Red")
Yes, in this case, will be working, and always better to create the design of the form:
<SolidColorBrush x:Key="MyButtonColor" Color="Blue" />
And use it for control, like Button:
<Button Background="{StaticResource MyButtonColor}" ... />
and in Style or elsewhere:
<Setter Property="Fill" Value="{StaticResource MyButtonColor}" />
That is, it is better not to depend on the element parameters (background color, etc.) located in a visual tree, because it can:
May move to another panel (Grid, StackPanel) or UserControl
May leave from the project
And brushes in the as resources will always be in one place, changing them in this place, all the elements of their pick up. Also colors can be stored in a special data model that does not depend on the specific technical implementations (resources, variables) in which the data can come from an external source, such as the project/config settings.
If possible, it is better to avoid the use of dynamic resources due to unnecessary use of system perfomance (and in some cases memory leaks), in your cases they are not needed.
Dynamic resources are usually explicitly defined for SolidColorBrush and another species brushes, because by default they are frozen, and they not recommended changed because of the above mentioned reasons (memory leaks). More information can be found here:
Freezable Objects Overview on MSDN
Edit
As I understand it, you want to make universal Style for Button to make the contents of Path or Text (in the case of simultaneous use will be easier). As I have already mentioned above, RelativeSource should be around ControlTemplate, therefore, the Path will be in the Grid with the ContentPresenter.
To style knew, which is provided for the text or for the path, to the Tag (optional property) indicates two properties: OnlyText or OnlyPath.
To set the data for the Path, I've created a attached dependency property, and prescribed it in the ControlTemplate.
Below is a complete example:
XAML
<Window x:Class="ButtonPathHelp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:ButtonPathHelp"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
WindowStartupLocation="CenterScreen"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<SolidColorBrush x:Key="Green_Brush" Color="Green" />
<SolidColorBrush x:Key="Black_Brush" Color="Black" />
<Style x:Key="Button_Style" TargetType="{x:Type Button}">
<Setter Property="Foreground" Value="{StaticResource Green_Brush}" />
<Setter Property="HorizontalAlignment" Value="Center" />
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid x:Name="grid">
<ContentPresenter x:Name="MyContent"
Content="{TemplateBinding Content}"
HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
VerticalAlignment="{TemplateBinding VerticalAlignment}" />
<Path x:Name="MyPath"
SnapsToDevicePixels="True"
Width="20"
Height="18"
Stretch="Fill"
Fill="{Binding Path=Foreground, RelativeSource={RelativeSource AncestorType={x:Type Button}}}"
Data="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:MyDependencyClass.DataForPath)}" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Foreground" Value="{StaticResource Black_Brush}"/>
</Trigger>
<Trigger Property="Tag" Value="OnlyText">
<Setter TargetName="MyPath" Property="Visibility" Value="Collapsed" />
<Setter TargetName="MyContent" Property="Visibility" Value="Visible" />
</Trigger>
<Trigger Property="Tag" Value="OnlyPath">
<Setter TargetName="MyPath" Property="Visibility" Value="Visible" />
<Setter TargetName="MyContent" Property="Visibility" Value="Collapsed" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<WrapPanel>
<WrapPanel.Resources>
<sys:String x:Key="Save">
F1 M 20.5833,20.5833L 55.4167,20.5833L 55.4167,55.4167L 45.9167,55.4167L 45.9167,44.3333L 30.0833,44.3333L 30.0833,
55.4167L 20.5833,55.4167L 20.5833,20.5833 Z M 33.25,55.4167L 33.25,50.6667L 39.5833,50.6667L 39.5833,55.4167L 33.25,
55.4167 Z M 26.9167,23.75L 26.9167,33.25L 49.0833,33.25L 49.0833,23.75L 26.9167,23.75 Z
</sys:String>
<sys:String x:Key="Search">
F1 M 23.4454,49.2637L 31.7739,41.1598C 30.6986,39.2983 30.4792,37.1377 30.4792,34.8333C 30.4792,27.8377 35.7544,
22.1667 42.75,22.1667C 49.7456,22.1667 55.4167,27.8377 55.4167,34.8333C 55.4167,41.8289 49.7456,47.1042 42.75,
47.1042C 40.5639,47.1042 38.5072,46.9462 36.7125,45.9713L 28.3196,54.1379C 27.0829,55.3746 24.6821,55.3746 23.4454,
54.1379C 22.2088,52.9013 22.2088,50.5004 23.4454,49.2637 Z M 42.75,26.9167C 38.3777,26.9167 34.8333,30.4611 34.8333,
34.8333C 34.8333,39.2056 38.3777,42.75 42.75,42.75C 47.1222,42.75 50.6667,39.2056 50.6667,34.8333C 50.6667,
30.4611 47.1222,26.9167 42.75,26.9167 Z
</sys:String>
</WrapPanel.Resources>
<Button Name="SaveButton"
Style="{StaticResource Button_Style}"
Tag="OnlyPath"
local:MyDependencyClass.DataForPath="{StaticResource Save}"
Margin="10" />
<Button Name="JustText"
Style="{StaticResource Button_Style}"
Tag="OnlyText"
Content="Just Text"
Margin="10" />
<Button Name="SearchButton"
Style="{StaticResource Button_Style}"
Tag="OnlyPath"
local:MyDependencyClass.DataForPath="{StaticResource Search}"
Margin="10" />
</WrapPanel>
</Window>
Code behind
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}
public class MyDependencyClass : DependencyObject
{
#region IsCheckedOnDataProperty
public static readonly DependencyProperty DataForPathProperty;
public static void SetDataForPath(DependencyObject DepObject, string value)
{
DepObject.SetValue(DataForPathProperty, value);
}
public static string GetDataForPath(DependencyObject DepObject)
{
return (string)DepObject.GetValue(DataForPathProperty);
}
#endregion
static MyDependencyClass()
{
PropertyMetadata MyPropertyMetadata = new PropertyMetadata(String.Empty);
DataForPathProperty = DependencyProperty.RegisterAttached("DataForPath",
typeof(string),
typeof(MyDependencyClass),
MyPropertyMetadata);
}
}
Note: In the Style I have not used TemplateBinding for attached property, because TemplateBinding doesn’t work outside a template or outside its VisualTree property, so you can’t even use TemplateBinding inside a template’s trigger. Therefore, we must use the construction {RelativeSource TemplatedParent} and a Path equal to the dependency property whose value you want to retrieve.
Output
To download the entire example please follow this link.
I stumbled across simillar problem but was wondering how to get to the 'Foreground Colour' of the Button in its DISABLED state (to have correct colour of my drawing). Here is a finally simple sollution. No templates, No styles, no code, nothing at all. Just the right relative binding :-) :
<StackPanel Orientation="Horizontal">
<Button Height="22" IsEnabled="False">
<Polygon Points="4,0 4,5 5,5 2.5,10 0,5 1,5 1,0 "
Fill="{Binding (TextElement.Foreground), RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ContentPresenter}}}">
<Polygon.LayoutTransform>
<RotateTransform Angle="90"></RotateTransform>
</Polygon.LayoutTransform>
</Polygon>
</Button>
<Button Height="22" IsEnabled="True">
<Polygon Points="4,0 4,5 5,5 2.5,10 0,5 1,5 1,0 "
Fill="{Binding (TextElement.Foreground), RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ContentPresenter}}}">
<Polygon.LayoutTransform>
<RotateTransform Angle="180"></RotateTransform>
</Polygon.LayoutTransform>
</Polygon>
</Button>
</StackPanel>