Prevent two windows to open
I have an add button and if the user clicks on the add button a new screen is open in a popup. I am having the issue that if the user click on the add button twice two popups appear and the design is disturbed. What I want to do is to prevent the popup to open for the second time. Is there any way I can prevent the popup to be displayed two times. Thanks in advance.
Yes, in the event handler for the button, the SelectHandler, disable the button immediately.