Note: ASP. NET prevents multiple button submissions

<Asp: button id = "btnsubmit" runat = "server" usesubmitbehavior = "false" onclientclick = "this. disabled = true; "text =" Submit "onclick =" button#click "/>

 

Add

Usesubmitbehavior = "false" onclientclick = "This. Disabled = true;" two attributes can prevent multiple submissions

 

By the way, ask for a question.

After this setting, the disabled attribute of the button1_click event becomes false, that is, after the background event is executed, you can click it again. The problem solved now is to directly

In the button#click event, use this. btnsubmit. Enabled = false;

 

How to Use JS control, click Disabled once, and disable this. btnsubmit. Enabled = false.