WPF DataGrid: How do I set columns to TextWrap?

I'm not sure why my code isn't doing the TextWrapping properly. It doesn't wrap the text for the Description column (which is what I want). It just cuts it off and it doesn't even use the "..." to let me know there is more data.

I tried to use this code I found online to do the job, but it didn't work. Ideally I'd love to be able to only set TextWrap to certain columns and not generically across all DataGri开发者_StackOverflow中文版dCell objects.

Oh, and please do note that I am using Microsoft.NET 4 so this is the DataGrid offered through that, not from the WPF Toolkit.

<DataGrid Name="TestGrid" Grid.Row="2" Grid.ColumnSpan="2" AutoGenerateColumns="False" ItemsSource="{Binding IntTypes}" SelectedValue="{Binding CurrentIntType}">
 <DataGrid.Resources>
  <Style TargetType="{x:Type DataGridCell}">
   <Setter Property="Template">
    <Setter.Value>
     <ControlTemplate TargetType="{x:Type DataGridCell}">
      <Border Name="DataGridCellBorder">
       <TextBlock Background="Transparent" TextWrapping="WrapWithOverflow" TextTrimming="CharacterEllipsis" Height="auto" Width="auto">
        <ContentPresenter Content="{TemplateBinding Property=ContentControl.Content}"  ContentTemplate="{TemplateBinding Property=ContentControl.Content}" />
       </TextBlock>
      </Border>
     </ControlTemplate>
    </Setter.Value>
   </Setter>
  </Style>
 </DataGrid.Resources>
 <DataGrid.Columns>
  <DataGridTextColumn Header="ID" Binding="{Binding ID}" IsReadOnly="True" />
  <DataGridTextColumn Header="Interested Parties Description" Binding="{Binding Description}" IsReadOnly="False"  />
 </DataGrid.Columns>
</DataGrid>

Thanks in advance!

It Doesn't work because the "Text" property of your TextBlock is actually being set to another object instead of just a string. At runtime, your VisualTree looks something like:

Cell
  - TextBlock (w/ TextWrapping and TextTrimming)
    -  ContainerVisual
       -  ContentPresenter
          -  TextBlock (auto-generated by the DataGrid)

In short, you're code is essentially doing something like this:

<TextBlock TextTrimming="CharacterEllipsis" TextWrapping="WrapWithOverflow">
  <TextBlock Text="The quick brown fox jumps over the lazy dog"/>
</TextBlock>

To fix this, try updating your ControlTemplate as follows:

<ControlTemplate TargetType="{x:Type DataGridCell}">
    <Border Name="DataGridCellBorder">
        <ContentControl Content="{TemplateBinding Content}">
            <ContentControl.ContentTemplate>
                <DataTemplate>
                    <TextBlock Background="Transparent" TextWrapping="WrapWithOverflow" TextTrimming="CharacterEllipsis" 
                                Height="auto" Width="auto" Text="{Binding Text}"/>
                </DataTemplate>
            </ContentControl.ContentTemplate>
        </ContentControl>
    </Border>
</ControlTemplate>