Js calls the asp.net background code, and js calls asp.net

Js calls the asp.net background code, and js calls asp.net

Method 1:

1. Create a button to write the called or processed content to button_click in the background;

2. Write a js function in the foreground with the content document. getElementById ("btn1"). click ()

Or document. getElementById ("btn1"). onclick ()

3. Call js functions on the frontend or backend to stimulate the click event, which is equivalent to accessing the c # function in the background;

Method 1:Directly use <% = %>

Foreground method:

<Script type = "text/javascript">
Var methodStr = "<% = BehindMethod () %> ";
Alert (methodStr );
</Script>

Background method:

Public static string BehindMethod ()
{

// Processing Method

Return "";

}

Note: The method created in the background must be static and public. Otherwise, an exception is reported if the method is not accessed,