In Asp.net, the button does not respond to events.

I also encountered this problem a while ago. At that time, if the anthem control was used, this problem would occur as long as there was a duplicate name control. But today is definitely not the reason, so I checked it online. Some netizens said:
Sometimes, we can say that the recently installed dotnetformwork & ASP. net, some pages do not trigger the corresponding event after the button is clicked, it seems that the validator control page has such a problem, at this time, re-install and register IIS:
Run: aspnet_regiis-I 
This reminds me that I did use the validator control to delete these controls, OK, and solve the problem. Why did I continue to renew the controls? After clicking the button, I first checked them, if the verification fails, discard the click event.