Asp.net Ajax post-update prompt using updatepanel

I tried to implement such a simple function for a long time. The reason is that the first time I used Asp.net Ajax, I didn't want to use MS. But I want to see how his framework works.

An error occurs when response. Write (JS) is used. According to some documents, we used to call the static method registerstartupscript of scriptmanager. I wonder why the instance type does not provide this method. It took me a lot of time.

Scriptmanager. registerstartupscript (this. updatepanel1, this. GetType (), "updatescript", "alert ('saved successfully')", true );

It seems that you have time to study it. However, I feel that I am getting less and less effort to learn these technologies. Ah, people are old. No.