Your Privacy Matters: We use our own and third-party cookies to improve your experience on our website. By continuing to use the website we understand that you accept their use. Cookie Policy
Switching tab views from MVVM viewmodel

I have a XamTabControl with two tabs.

The first tab has a XamDataGrid with a collection of objects.  
The 2nd tab has a UserControl.  
When I select the row I want to view I set the datacontext of the usercontrol to a viewmodel then set SelectedIndex on the tab control to switch the view.

I expect the 2nd tab to come into view but nothing happens.

Is there something else I need to do to make this work?