DataTemplateSelector without code-behind

Question

Is it possible to use DataTemplateSelector in a XAML-only way, i.e. without code-behind?

Answer 1

You can't define the actual DataTemplateSelector class in XAML if that's what you are asking.

Once you have defined a DataTemplateSelector class using C# or whatever your preferred programming language is you can use it in your XAML markup though:

<Window ... xmlns:local="clr-namespace:SDKSample">
    <Window.Resources>
        <local:TaskListDataTemplateSelector x:Key="myDataTemplateSelector"/>
    </Window.Resources>
    <Grid>
        <ListBox Width="400" Margin="10"
         ItemsSource="{Binding Source={StaticResource myTodoList}}"
         ItemTemplateSelector="{StaticResource myDataTemplateSelector}"
         HorizontalContentAlignment="Stretch"/>
        ...

Please refer to the documentation on MSDN for more information and a full example: https://msdn.microsoft.com/en-us/library/system.windows.controls.datatemplateselector(v=vs.110).aspx