I created toast notifications by instructions from this article http://msdn.microsoft.com/en-us/library/windows/apps/xaml/dn631260.aspx
By clicking on notification it is cancelled and removed from action center. Is there any way not to remove notification by clicking on it?
This article explains how to control the behaviour for all messages in the action center:
http://msdn.microsoft.com/en-us/library/windows/apps/xaml/dn631260.aspx
What you could do is sending the toast again and suppress the popup: