Nested ComboBox doesn't update source by selection.

Posted by Shimmy on Stack Overflow See other posts from Stack Overflow or by Shimmy
Published on 2010-04-25T14:50:27Z Indexed on 2010/04/25 14:53 UTC
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Hello.

I am using a ComboBox bound under a DataContext:

<tk:DataGridTemplateColumn.CellEditingTemplate>
    <DataTemplate>
        <ComboBox                                   
            ItemsSource="{Binding Source={StaticResource CategoriesCollection}" 
            DisplayMemberPath="Title" 
            SelectedItem="{Binding Category}" />
    </DataTemplate>
</tk:DataGridTemplateColumn.CellEditingTemplate>

When the row is initiated the value of Category is null. Once I select the first value in the ComboBox it sets it up. But when I select another value, it doesn't get changed.

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