Reusing of DataTemplate

Question

I have two DataTemplates for different cells in my Treelistview control. the templates are 90% similar. How can I reuse the identical Xaml ?

 <DataTemplate x:Key="@names"> <TextBlock Name="txt" Text="{Binding Names}" Style="{DynamicResource @BasicTextBlockStyle}" Foreground="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Border},AncestorLevel=1}, Path=BorderBrush,Mode=OneWay}" /> <DataTemplate.Triggers> <DataTrigger Binding="{Binding IsVisible}" Value="True"> <Setter Property="Style" Value="{DynamicResource @HeaderTextBlockStyle}" TargetName="txt" /> </DataTrigger> <DataTrigger Binding="{Binding IsScoped}" Value="True"> <Setter Property="Style" Value="{DynamicResource @RootElementTextBlockStyle}" TargetName="txt" /> </DataTrigger> </DataTemplate.Triggers> </DataTemplate> <DataTemplate x:Key="@Ages"> <TextBlock Name="txt" Text="{Binding Age}" Style="{DynamicResource @BasicTextBlockStyle}" Foreground="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Border},AncestorLevel=1}, Path=BorderBrush,Mode=OneWay}" /> <DataTemplate.Triggers> <DataTrigger Binding="{Binding IsVisible}" Value="True"> <Setter Property="Style" Value="{DynamicResource @HeaderTextBlockStyle}" TargetName="txt" /> </DataTrigger> <DataTrigger Binding="{Binding IsScoped}" Value="True"> <Setter Property="Style" Value="{DynamicResource @RootElementTextBlockStyle}" TargetName="txt" /> </DataTrigger> </DataTemplate.Triggers> </DataTemplate>

mdm20 · Accepted Answer · 2010-10-18 14:32:16Z

You can try doing something like this:

<DataTemplate x:Key="Inner"> <TextBlock Name="txt" Text="{Binding}" Style="{DynamicResource @BasicTextBlockStyle}" Foreground="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Border},AncestorLevel=1}, Path=BorderBrush,Mode=OneWay}" /> <DataTemplate.Triggers> <DataTrigger Binding="{Binding IsVisible}" Value="True"> <Setter Property="Style" Value="{DynamicResource @HeaderTextBlockStyle}" TargetName="txt" /> </DataTrigger> <DataTrigger Binding="{Binding IsScoped}" Value="True"> <Setter Property="Style" Value="{DynamicResource @RootElementTextBlockStyle}" TargetName="txt" /> </DataTrigger> </DataTemplate.Triggers> </DataTemplate> <DataTemplate x:Key="Names"> <Border BorderBrush="Black" BorderThickness="1" Height="100" Width="100" HorizontalAlignment="Left"> <ContentPresenter Content="{Binding Names}" ContentTemplate="{StaticResource Inner}" /> </Border> </DataTemplate> <DataTemplate x:Key="Ages"> <Border BorderBrush="Black" BorderThickness="1" Height="100" Width="100" HorizontalAlignment="Right"> <ContentPresenter Content="{Binding Ages}" ContentTemplate="{StaticResource Inner}" /> </Border> </DataTemplate>

Nice idea but it's forcing me to add unnecessary border witch I prefer to avoid from.

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