Hey Ravi,
The solution About This is Following,
A solution for this would be to:
– open the file in Blend
– on the right side of the screen, select Resources tab
– there you should see your xaml file
– select the resource and expand it
– select the first child, right click on it and select Edit
– now the layout will appear on the main window
– right click on the layout (your xaml layout) and select Edit Template and Current.
Hope it Helps,
Thanks,
Vaibhav Shah