How can I get my TextBlock to have a "strike-through"?

Question

I already have a template where I have been using a line to strike-through a Combobox items in its popup listbox.
But now I have the case where I have the same item in a datagrid row.  And the column can be resized.  The TextBlock allows wrapping and does, but how can I use that template when the text wraps?  The line is only on one line of the wrapped
text.
The template I'm using is:
<DataTemplate x:Key="EO_ActionItemPersonAssignedTemplate2">
<Grid>
<Line
Stroke="Gray"
StrokeThickness="1"
VerticalAlignment="Center"
HorizontalAlignment="Stretch"
Stretch="Fill"
X1="0"
X2="{Binding ActualWidth, ElementName=text1}"
Visibility="{Binding AssignedToPersonEnabled, Converter={StaticResource EO_BooleanToVisibility}, ConverterParameter=Reverse}"
/>
<TextBlock
x:Name="text1"
Text="{Binding LastnameFirstname}"
ToolTipService.ToolTip="{Binding EnabledTooltip}"
VerticalAlignment="Center"
HorizontalAlignment="Left"
TextWrapping="Wrap"
/>
</Grid>
</DataTemplate>

Answer 1

A better solution.
You need a fixed width font for the textblocks.
<UserControl x:Class="SilverlightApplication1.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:local="clr-namespace:SilverlightApplication1"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="400"
FontFamily="Courier New"
>
<Grid x:Name="LayoutRoot" Background="White">
<Grid.Resources>
<local:UnderlineConverter x:Key="underlineConverter"/>
<DataTemplate x:Key="TestTemplate">
<Border HorizontalAlignment="Left" Loaded="Border_Loaded">
<Grid VerticalAlignment="Center">
<TextBlock TextWrapping="Wrap"
Text="{Binding Name}" Foreground="Gray" />
<TextBlock TextWrapping="Wrap"
Text="{Binding Name, Converter={StaticResource underlineConverter}}" Foreground="Black" Margin="0,-6,0,0" />
</Grid>
</Border>
</DataTemplate>
</Grid.Resources>
<StackPanel>
<sdk:DataGrid ItemsSource="{Binding Items}" AutoGenerateColumns="False">
<sdk:DataGrid.Columns>
<sdk:DataGridTemplateColumn Header="Name" CellTemplate="{StaticResource TestTemplate}" Width="100"/>
</sdk:DataGrid.Columns>
</sdk:DataGrid>
<ComboBox Name="cbo"
ItemsSource="{Binding Items}"
ItemTemplate="{StaticResource TestTemplate}" Height="30" Width="300"
/>
</StackPanel>
</Grid>
</UserControl>
Converter:
public class UnderlineConverter : IValueConverter
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
if (value != null)
string str = value as string;
string underLines = new String(str.Select(r => r == ' ' ? ' ' : '_').ToArray());
return underLines;
return "";
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
throw new NotImplementedException();
Hope that helps.
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