Mutual call between C # function and JavaScript function

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We answer the mutual calls between the C # function and the JavaScript function by way of question and answer.

How do I access C # functions in JavaScript? The answers to the questions are as follows:

Execute the function in the C# code in the JavaScript function:

Method 1:

1. First set up a button to write the called or processed content to the button_click in the background.

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

3. Call the js function in the foreground or background to fire the click event, which is equal to visiting the background C# function

Method 2:

1. The function is declared as public

Background code (you can also change public to protected)

Publicstringss () {return ("a");}

2. In html, you can call

Foreground script

Vara= ""; alert (a); script >

Method 3:

Function__doPostBack (eventTarget,eventArgument)

{

VartheForm=document.Form1;// refers to the form of runat=server

TheForm.__EVENTTARGET.value=eventTarget

TheFrom.__EVENTARGUMENT.value=eventArgument

TheForm.submit ()

}

Script >

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