Asp.net Ajax，有时会挂起

Question

I use ASP.net Ajax on my project. and using Session for state management.

in some piece of code , I have some modalpop up , that contain UCs and do some things.

If I use UpdatePanel , sometimes, when I open popup, for a long time progress bar shows and dont do any things. if I refresh page it will work correctly. Also If I remove the UpdatePanel all methods work perfectly.

on pages that I have more than one popup( or any method that I run under update panel) I have this problem.

What was wrong? and how can I fix this?

Answer 1

您应该做的第一件事是获取Fiddler并查找任何未解决的请求。

Answer 2

What type of browser are you using? Sometimes Google Chrome suffer from this problem like my personal website. Unfortunately, I've no idea what's going on,too.

Answer 3

Check with Firebug , in console mode you can see what http requests are sent, and if they already got a response (and see its response). It's a good place to start debugging everything that has to do with Ajax.

Answer 4

我发现，当您实际上没有支持IPv6的网络时，启用IPv6有时可能会引起这样的延迟，而系统尝试使用IPv6（并最终超时，然后恢复为IPv4）。

Answer 5

for more information , I load UC dynamiclly on page in OnInit method, therefore on every post back , UC load again , before when I load UC static , I have not this problem such as now. Also I use ModalUpdateProgress , that was a third party and open source control for Progressbar