Question

I have datagrid, when press update button I made popup window. I want to pause update process while user fills popup window.

Answer 1

You should start the Update only when you have all required info, not before the user fills in data in the popup window.

the first phase would be data capturing from user input, then you validate the data are correct, valid and sufficient and only then you start the update process whatever it means to you (you have given too few details…)