I'm using Silverlight 4 + Silverlight 4 Toolkit (April 2010). I'd like to display the dependent value of my pie chart in the chart legend. I've tried styling the legend item however I do not know how to bind to the dependent value.
Many thanks,
Keith
<Style x:Key="LegendItemStyle" TargetType="toolkit:LegendItem">
<Setter Property="IsTabStop" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="toolkit:LegendItem">
<StackPanel Orientation="Horizontal">
<Rectangle Width="8" Height="8" Fill="{Binding Background}"
Stroke="{Binding BorderBrush}" StrokeThickness="1" Margin="0,0,3,0" />
<!-- MY VALUE HERE -->
<visualizationToolkit:Title Content="{TemplateBinding Content}" />
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I needed to do the same thing and found on this site, http://forums.silverlight.net/forums/p/91586/326235.aspx, that you can use the data context binding instead of the template binding.
The below applies to the section where you placed a comment
<!-- MY VALUE HERE -->
Instead of doing something like
<TextBlock Text="{Binding ActualDependentValue}" />
or
<TextBlock Text="{Binding ActualIndependentValue}" />
find the property that you used in the series to bind to and replace it with something like
<TextBlock
Text="{Binding PropertyNameOfIndependentOrDependentValue}"
DataContext="{Binding DataContext}"
/>
Related
I have created a Groupbox resource directory, and created a style that affects the groupbox.
Here is my Resource Directory code:
<Style x:Key="grpNumbers" TargetType="GroupBox">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GroupBox">
<Border
BorderThickness="1"
BorderBrush="#25A0DA" CornerRadius="10">
<Label HorizontalAlignment="Left" Content="Carrier" Foreground="White" Background="#151515" Height="38"
Margin="30,-195,0,0"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
The issue is that I want the group box style to not be coupled with the Content in the Label.
Currently it is getting instantiated in the mainwindow like this:
<GroupBox Style="{StaticResource ResourceKey=grpNumbers}" Grid.Column="1" BorderBrush="#272727" Grid.Row="1" Height="200" Margin="20" HorizontalAlignment="Stretch" Header="Carrier information" Foreground="White" FontSize="20" BorderThickness="0.2">
</GroupBox>
But obviously the above groupboxes' Header tag isn't overriding the header of my custom groupbox but I need it too, can this be done?
Label inside ContentTemplate can use TemplateBinding to bind Header:
<Label Content="{TemplateBinding Header}"/>
You should modify your Style too look like this:
<Style x:Key="grpNumbers" TargetType="{x:Type GroupBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupBox}">
<Grid>
<Border BorderThickness="1"
BorderBrush="#25A0DA"
CornerRadius="10">
<Label HorizontalAlignment="Left"
Content="{TemplateBinding Header}"
Foreground="White"
Background="#151515"
Height="38"
Margin="30,-195,0,0"/>
</Border>
<!-- Responsible for displaying what you put inside of your GroupBox -->
<ContentPresenter Margin="5,25,5,5" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
which can then be used like this:
<GroupBox Style="{StaticResource grpNumbers}"
Grid.Column="1"
BorderBrush="#272727"
Grid.Row="1"
Height="200"
Margin="20"
HorizontalAlignment="Stretch"
Header="Carrier information"
Foreground="White"
FontSize="20"
BorderThickness="0.2">
<TextBox /> <!-- or whatever you want inside your GroupBox -->
</GroupBox>
Currently I am working on wpf popup which contains a label, which constitute of textblocks inside the control template. Here my issue is that popup has a bottom border shadow. Already a border is there for the popup along with that this shadow effect increases the bottom border thickness, which looks like this (check the link below to see the screenshot for popup).
Wpf code is like this
Label Control template style
<Style x:Key="popuplabelstyle" TargetType="{x:Type Label}">
<Setter Property="OverridesDefaultStyle" Value="true" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Label}">
<Border BorderBrush="Red" x:Name="labelBorder" BorderThickness="1" Padding="12" Background="White" Height="auto" MinHeight="260" Width="220">
<StackPanel>
<TextBlock Text="ABCD" Margin="0,0,0,4" />
<TextBlock Text="abcd" Margin="0,4,0,0" />
</StackPanel>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
xaml code for popup
<Popup x:Name="Mypopup" Panel.ZIndex="2" Placement="MousePoint" HorizontalOffset="10" VerticalOffset="10" IsOpen="{Binding ">
<Label Style="{StaticResource popuplabelstyle}"/>
</Popup>
I don't know why it's happening like this. Can anyone help me to solve this?
See the screenshot of the popup in below link
Try to set the SnapsToDevicePixels and/or UseLayoutRounding property of the Border to True to enable pixel snap rendering:
<ControlTemplate TargetType="{x:Type Label}">
<Border BorderBrush="Red" x:Name="labelBorder"
BorderThickness="1" Padding="12" Background="White" Height="auto" MinHeight="260" Width="220"
SnapsToDevicePixels="True" UseLayoutRounding="True">
<StackPanel>
<TextBlock Text="ABCD" Margin="0,0,0,4" />
<TextBlock Text="abcd" Margin="0,4,0,0" />
</StackPanel>
</Border>
</ControlTemplate>
This should make the Border look sharper.
When should I use SnapsToDevicePixels in WPF 4.0?
I have a control template like below, and I want to get IsChecked property when user selects a radio button.
But when user select radio button "A" it's IsChecked property still show false. Why?
<ControlTemplate x:Key="RadioBtnTemplate" TargetType="{x:Type RadioButton}">
<Grid>
<StackPanel Margin="5">
<RadioButton Name="tempbtn" IsChecked="{TemplateBinding IsChecked}" FontFamily="Segoe UI" FontSize="18.667" Content="{TemplateBinding Content}" GroupName="{TemplateBinding GroupName}"/>
</StackPanel>
</Grid>
</ControlTemplate>
and I use this template:
<RadioButton GroupName="CG" x:Name="_rdoBtnA" Content="A" Template="{DynamicResource RadioBtnTemplate}" IsChecked="True"/>
<RadioButton GroupName="CG" x:Name="_rdoBtnB" Content="B" Template="{DynamicResource RadioBtnTemplate}" />
<RadioButton GroupName="CG" x:Name="_rdoBtnC" Content="C" Template="{DynamicResource RadioBtnTemplate}" />
If we take your example as is then you have two problems which cause the problems you are seeing.
Issue 1:
Firstly your design has created six not three <RadioButton> controls. The three in the <StackPanel> and then three that are created as part of the control template. All six radio buttons are now linked as part of the GroupName="CG" group.
As you know because they all belong to the same CG group only one of the six radio buttons can have the IsChecked property set to True. The three named controls _rdoBtnA, _rdoBtnB and _rdoBtnC are not even visible on the screen so they can never be set to True (and in the case of _rdoBtnA is promptly set to False from the XAML declared True the moment the template control is bound).
To resolve this situation, remove the GroupName="{TemplateBinding GroupName}" from the control template definition leaving only the three top level radio buttons in the group.
Issue 2: This is the issue I thought was the root of your problem to begin with. IsChecked={TemplateBinding IsChecked} is only OneWay binding and will not update the other way. To make the binding TwoWay you need to use the long-hand version of the binding definition, IsChecked="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
The control template now becomes this by making those two changes.
<ControlTemplate x:Key="RadioBtnTemplate" TargetType="{x:Type RadioButton}">
<Grid>
<StackPanel Margin="5">
<RadioButton Name="tempbtn" IsChecked="{Binding IsChecked, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}" FontFamily="Segoe UI" FontSize="18.667" Content="{TemplateBinding Content}" />
</StackPanel>
</Grid>
</ControlTemplate>
you can use it this way:
<StackPanel Orientation="Horizontal">
<StackPanel.Resources>
<ControlTemplate x:Key="ButtonAsSwatchTemplate">
<Border x:Name="SwatchBorder" BorderThickness="1">
<Rectangle Fill="{TemplateBinding Property=Background}" Width="15" Height="15" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter TargetName="SwatchBorder" Property="BorderBrush" Value="Yellow" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</StackPanel.Resources>
<RadioButton Template="{StaticResource ButtonAsSwatchTemplate}"
GroupName="CropGuidesColourRadioButtonGroup"
IsChecked="{Binding Checked}" Margin="2" Background="Red" />
<RadioButton Template="{StaticResource ButtonAsSwatchTemplate}"
GroupName="CropGuidesColourRadioButtonGroup"
IsChecked="{Binding Checked}" Margin="2" Background="Black" />
</StackPanel>
taken from StackOverFlow
I'm working with multiple time-series chart based on WPF toolkit. For example time-series of temperature, dewpoint and pressure in one chart
I need to share tooltips to show at each datapoint a summary of the meteorlogical parameters at a certain date/time in a little tooltip frame.
If anyone know if it is possible and how to do that, it would be great.
Thanks,
PY
Look up Styles for the DataPoints of your Series i've got one example for BubbleDataSeries:
<Style x:Key="BubbleToolTipTemplate" TargetType="{x:Type c:BubbleDataPoint}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="c:BubbleDataPoint">
<Grid>
<Ellipse Fill="{TemplateBinding Background}" Stroke="{TemplateBinding BorderBrush}" />
<ContentPresenter Content="{TemplateBinding Size}" HorizontalAlignment="Center" VerticalAlignment="Center" />
<ToolTipService.ToolTip>
<StackPanel>
<ContentControl Content ="{TemplateBinding DependentValue, Converter={StaticResource DoubleToStringConverter}}" />
<ContentControl Content ="{TemplateBinding IndependentValue}"/>
<ContentControl Content ="{TemplateBinding Size}" />
</StackPanel>
</ToolTipService.ToolTip>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I'm trying to write a HeaderTemplate for an extender. So far, I've noticed all the examples use the {Binding} keyword to get the data from the header. However, what happens if there are multiple controls within the Header? How do I specify that those controls should be inserted at a specific location?
<Window.Resources>
<Style x:Key="ExpanderStyle" TargetType="{x:Type Expander}">
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<!-- what do I put in here? -->
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Expander Style="{StaticResource ExpanderStyle}">
<Expander.Header>
<StackPanel Orientation="Horizontal">
<TextBlock>Some Text</TextBlock>
<TextBlock Text="{Binding SomeBinding}" />
<Button />
</StackPanel>
</Expander.Header>
<Image Source="https://www.google.com/logos/2012/steno12-hp.jpg" />
</Expander>
Should I be moving my binding into the HeaderTemplate in the style and just overwriting whatever the Header in the Expander is?
You can use ContentPresenter to insert whatever the usual content would be into your Template
For example:
<Style x:Key="ExpanderStyle" TargetType="{x:Type Expander}">
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<Border BorderBrush="Blue" BorderThickness="2">
<ContentPresenter />
</Border>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
Header's property Content could contain only one object.
If you merge these object in one panel:
<StackPanel>
<TextBlock>Some Text</TextBlock>
<TextBlock Text="{Binding SomeBinding}" />
<Button />
</StackPanel>
then in template you could use {binding}