VDS and events

[bjorn.nordle]

Hi,

I'm trying to get an event to fire when a user changes a selection in a combo box. The goal is to change the appearance of the dialog depending on the value selected.

The combo box in question is in fact the default one from file.xaml,

        <ComboBox ItemsSource="{Binding Source={StaticResource DocTypes}, XPath=DocTypeInfo}"
          x:Name="DocTypeCombo"
          Grid.Row="2"
          Grid.Column="1"
          IsEnabled="{Binding IsNewEntryDialog}"
          DisplayMemberPath="DocName"
          SelectedValuePath="Path"
          SelectedValue="{Binding TemplatePath}"
          SelectedIndex="0">

Problem is, the value is not attached to a property as I can see, so I can't use ,

		$Prop["MyProperty"].add_PropertyChanged({
			MyPropertyOnChangedEvent 
		})	

Autodesk help has a page for this, but I can't seem to get the code-beind file correct: what is CustomerViewModelBase and how do I access "base.".

I tried adding this inside the <combobox> in xaml.

SelectionChanged="{Binding PsCmd[OnPropertyChanged_DocTypeCombo]}">

 I also tried 

        <ComboBox ItemsSource="{Binding Source={StaticResource DocTypes}, XPath=DocTypeInfo}"
          x:Name="DocTypeCombo"
          Grid.Row="2"
          Grid.Column="1"
          IsEnabled="{Binding IsNewEntryDialog}"
          DisplayMemberPath="DocName"
          SelectedValuePath="Path"
          SelectedValue="{Binding TemplatePath}"
          SelectedIndex="0"
          SelectionChanged="OnSelectionChanged_DocTypeCombo">
</ComboBox>
        <x:Code>
            <![CDATA[
    void OnSelectionChanged_DocTypeCombo(object sender, RoutedEventArgs e)
    {
        textblock.Text = "Hello World";
    }
  ]]>
        </x:Code>

How should I solve this?

Regards,

Björn