Question

I have a list of string values (or tags) that I’m wanting to create a DataTemplate within another DataTemplate. For example, say I have an object with strings, ints and a list of strings. The list of strings is the set of tags I’m interested in. For each tag I have a specific DataTemplate I want to use:

<!-- This is the Tag Template-->
<DataTemplate x:Name="TagTemplate">
    <Border Background="LightGray">
        <TextBlock Text="{Binding TagValue}"/> <!-- This is where I'm not sure how to reference the individual tag-->
    </Border>
</DataTemplate>

And the main body of the other DataTemplate would contain the tags like this:

<!-- This is the main Data Template for the overall data-->
<DataTemplate>
     <Grid>
          <GridView ItemsSource="{Binding Tags}" ItemTemplate="{StaticResource TagTemplate }"/>
          <!-- Below is a commented static representation of the tags-->
          <!--<TextBlock Text="TAG, TAG, TAG, TAG, TAG" Margin="5, 5, 5, 5"/>-->
     </Grid>
<DataTemplate>

The DataBinding for the Tags would be a list of strings List<String> Tags

My problem is I’m not exactly sure how to reference the second binding or if even passing a list of anything is possible from one DataTemplate to another. Is this possible, and if so how?

Answer 1

If your Tags collection is List<String> then in your DateTemplate the DataContext will be the actual item: so a given string and you can bind to the current DataContext with the following syntax:

<DataTemplate x:Name="TagTemplate">
    <Border Background="LightGray">
        <TextBlock Text="{Binding}"/>
    </Border>
</DataTemplate>