How to add a Javascript event in codebehind

**DrBunchman** · May 29 '08, 10:59 AM

Hi Robert,

You can assign javascript to other controls in the same way as you did with your button. Check out this for a list of the possible events that you can use.

If you want to use the same javascript code for different events then you should store it as a function. A Javascript function defined between the <head /> tags can be called from any part of your page. Simply define the function and call it like so:

On your .aspx page:

Code:

<head> 
<script type="text/javascript">
function TestFunction()
{
alert('Hello World!!')
}
</script>
</head>

On your code behind page:

Code:

 
textbox1.attributes.add("onchange", "TestFunction();")

Does this help?

Dr B

PS Robert, you've posted your question in the ASP Forum which is for Classic ASP only - I've moved it for you but please post all your future ASP.NET questions in the .NET forum. Thanks.

**deric** · May 29 '08, 03:04 PM

Could the following help?

In your code behind:

Code:

Public myEvent As String
myEvent = ""
...
myEvent = "myFunction();"

In your .aspx page:

Code:

<html>
<script language="javascript">
function myFunction(){
...
}
</script>
...
<input type="button" name="myButton" onclick="<% =myEvent %>" />
<input type="input" name="myText" onchange="<% =myEvent %>" />
...
</html>

**kunal pawar** · May 30 '08, 06:39 AM

DrBunchman is gives right code and solution hope this will helps you

**RobertTheProgrammer** · May 30 '08, 07:26 PM

First of all, thanks for moving the thread to the .NET forum instead. I'm still learning...

Second, thanks for the response. I kind of figured that calling the javascript was the way to do it, but I just couldn't get my head wrapped around it.

Thanks again.

Robert

How to add a Javascript event in codebehind

How to add a Javascript event in codebehind

Comment

Comment

Comment

Comment