ASP - execute javascript code after asp:Button onClick handler?

Question

ASP.NET

Good afternoon.
There is an asp:Button button, a js-animation is launched in the onClientClick event, a file is generated in the onClick event on the server. Is there any way to detect the end of the onClick event on the client to stop the animation?

Answer 1

At first glance, no, due to the specifics of the WebForms life cycle.
If you think about it a little - the onclick event is called via Ajax? Then stop whatever you want on the onSuccess client event.
If the event is called synchronously - then what's the problem? the page should reload.