February 2007 Blog Posts
Originally published on my old Charteris blog
Richard contacted me today because he was having trouble binding a ListBox’s ContextMenu to data belonging to the SelectedItem. My initial thought was binding statement like this
<ListBox.ContextMenu>
<ContextMenu>
<MenuItem Header="{Binding Path=SelectedIndex,
RelativeSource={RelativeSource FindAncestor,
AncestorType={x:Type ListBox}}}" />
</ContextMenu>
</ListBox.ContextMenu>
RelativeSource tells the binding looking for the source of the binding and the way it does this is dependent on the mode. The four, supported modes are
FindAncestor...