Silly JScript ?

Factual Questions
1

I have a label with ID = Label1 in a form document.

Shouldn’t this code change the text in the label to ‘TEST’?

<script type=“text/javascript”>

L1 = document.getElementById("Label1");
L1.Text = "TEST";

</script>

Thanks

2

To update the contents of a DOM node, you’ll want to use the innerHTML property:



var L1 = document.getElementById( 'Label1' );
L1.innerHTML = 'TEST';
3

hmmm… It’s an ASP label.

With your code, I get the error - Microsoft JScript runtime error: ‘L1’ is null or not an object

Can I not update ASP?

4

Oh, I thought this was client-side Javascript.

I don’t know anything about ASP, sorry.

5

It’s ASP.NET I assume, right?

You want to use L1 = getElementById(‘<%=Label1.ClientID%>’);

If you notice, when you execute a page, ASP.NET changes the IDs of all of your ASP elements to crazy other IDs like ctrl$001Label1. That’s the ID you need to address it by when running Javascript. That’s called the ClientID.

6

Just want to say thanks. I was not able to go to work today and try it though, my Wife has car troubles.