Programatically Forcing A WPF Menu to Refresh ItemsSource

Hi,

In my app I have a menu that contains the following menu item:

<MenuItem Name="menuitemFrameDatabase" Header="{Binding Source={StaticResource dataprvdFramesDatabase}, XPath=.}" ItemsSource="{Binding Source={StaticResource dataprvdFramesDatabase}, XPath=*}" />

That depends on the following resource, which is one of the resources defined in that menu:

<XmlDataProvider x:Key="dataprvdFramesDatabase" XPath="FrameDatabase" Source="Resources/FrameDatabase.xml" />

As the menu does not automatically refresh when the source XML file changes, I’d like to force such a refresh whenever my app updates that XML. I therefore tried to add suitable code to the handler method of my app’s “Update XML File” button, but failed to make the menu refresh itself.

Here are two options I tried:

1.  BindingOperations.GetBindingExpressionBase(this.menuitemFrameDatabase, MenuItem.ItemsSourceProperty).UpdateTarget();

2.  this.menuitemFrameDatabase.GetBindingExpression(MenuItem.ItemsSourceProperty).UpdateTarget();

Is there any solution to this?

Thanks in advance!

Ofer