ComboBox with ItemTemplate that includes a button

Question

So, lets say I have a ComboBox with a custom data template. One of the items in the data template is a button:

<ComboBox Width="150" ItemsSource="{Binding MyItems}">
    <ComboBox.ItemTemplate>
        <DataTemplate>
            <Button Content="ClickMe" /> 
        </DataTemplate>
    </ComboBox.ItemTemplate>
</ComboBox>

The problem with this is that the button eats the click, and the item does not get selected if the button is selected. This means that the pull-down does not go away, and no item is selected.

I get WHY this is happening.

Is there a way to work around it? Possibly a way to process the button click (I am binding to a command) and tell it to continue up the chain so the combo box can also process the click?

Note: I am seeing my problem in Silverlight, but I am guessing that the exact same behavior can be seen with WPF.

Answer 1

OK, I got it figured out. It is a total hack, but it still lets me bind my command to the button and continue to have Combo-box behavior for selecting the item:

<ComboBox x:Name="MyCombo" Width="150" ItemsSource="{Binding MyItems}">
    <ComboBox.ItemTemplate>
        <DataTemplate>
            <Button Content="ClickMe" Click="Button_Click" /> 
        </DataTemplate>
    </ComboBox.ItemTemplate>
</ComboBox>

And in the code behind:

private void Button_Click(object sender, RoutedEventArgs e)
{
    MyCombo.SelectedItem = (sender as Button).DataContext;
    MyCombo.IsDropDownOpen = false;
}

If I really wanted to, I could bind the SelectedItem and IsDropDownOpen to properties in my ViewModel but I decided against it to keep this behavior as a hack extension of the XAML, in an effort to keep my ViewModel clean.