How do I call javascript function from codebehind with ClientScript

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How to call javascript function from code-behind

I have an empty div that I want to be adding check boxes to if a code behind boolean is true.

Here is the div:

<div id="checkboxes" />

Here is my javascript function:

        <script type="text/javascript">
        function addCheckboxes() {
            alert("just an alert for now");
        }

And here is my code behind where I want to call the "addCheckboxes" function:

bool isMovingTask = Convert.ToBoolean(Request.QueryString["isMovingTask"].ToString());
        if (isMovingTask)
        {
            //call javascript function
        }

I heard something about client script but I had no idea what it is. I just realized after martin sent me the link how it works. However I guessed I could have looked up on msdn....But I wasn't too sure if there was anything else that needed to be added — user1084319, Oct 12 '12 at 15:29

score 2 · Accepted Answer · edited May 23 '17 at 12:27

2

See related answer here: How to call javascript function from code-behind

Basically you want to make a call to register your client script, there are a few ways to do this in .NET.

edited May 23 '17 at 12:27

Community

1
1

answered Oct 12 '12 at 15:18

martinwnet

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score 1 · Answer 2 · answered Oct 12 '12 at 15:31

javascript is called when server execution of code and finished and generated html/script response is sent to browser. You can access public property of code behind in javascript and use it.

Make a public property in code behind and assign value to it in code behind

Code Behind

public  bool isChecked = true;

Html

    function addCheckboxes() {

       if('<%= isChecked %>' == 'True')
       {
          //Your code here
          alert("just an alert for now");

       }
    }

How do I call javascript function from codebehind with ClientScript

2 Answers2