Hi. I have a WPF application.

I want to apply that datatemplate to a Listbox filled with records from Table02. Then, for each listboxitem I need to bind the combobox to the same database table (Table01), but for each listboxitem the selected item will vary. It will be a foreign key to Table01.

    <DataTemplate x:Key="Table01DataTemplate">
    <Grid>
      <ComboBox 
ItemsSource="{Binding Model.IQueryable_Table01, 
 RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}"
SelectedValue="{Binding Table01_ForeignKey}"
DisplayMemberPath="name" 
SelectedValuePath="id"
/>
      <!-- Other stuff -->
    </Grid>
    </DataTemplate>

<ListBox x:Name="lbTest" ItemTemplate="{StaticResource Table01DataTemplate}" />

<!-- In .cs file 
lbTest.DataContext = this;
-->

Notes: Model.IQueryable_Table01 is a property which encapsulates a Linq-to-sql call returning a IQueryable. lbTest will be filled by setting ItemsSource with a Linq-to-sql call.

Is this a good way to do the bindings in a data template for a maximum reusability? I also thought of replacing

AncestorType={x:Type Window} with lbTest.DataContext = this;
AncestorType={x:Type Application} and lbTest.DataContext = App.Current; 

But it didn't work (Exception on loading) and I don't know if there's any caveats or down-sides to this approach.

Is this good? Any suggestions or improvements? Thanks.