Popup panel closing when I update data on nested gridView

Question

Hello,

 

I have a popup panel with nested a GridView inside the panel. Every time I perform an action (insert/update/delete) on GridView the panel is closing.

 

How do I keep it open and close only when clicking on a button in the panel?

 

I use item template for handling the gridView and modalpopupexter for the popup panel. 

 

Thank you in advance.