can't access my web control in javascript

[gib99]

Hello,

I'm sorry if this has been answered before, but I did try searching and found no solutions to this:

I'm working with a web application that needs to get access to an ASP.NET web control (a button) in javascript. The problen is that since the control is run on the server, javascript can't access it in the standard way (i.e. document.getElementById(controlId).

I've actually solved this problem before in a different application, but my solution there doesn't seem to work here for some reason.

I have this in an aspx file:

<script...>

...

function myfun()
{
var b = document.getElementById("<%=SaveButton.ClientID%>");
alert(b);
}

</script>

...

<asp:Button ID="SaveButton" Text="save" OnClientClick="myfun()" ClientIDMode="Static" runat="server" UseSubmitBehavior="False" />

I have a designer class in which the button is declared (and therefore exists in the server-side codebehind):

protected global::System.Web.UI.WebControls.Button SaveButton;

But when I click on my button, the alert box says "null".

Why am I not able to get my button in the javascript function?

Some things to note:

*The button exists within a content tag:

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">

*I'm working within Visual Studios 2008.

 

[jbenson001]

Why do you have that declaration for the button? Was this page originally created in 1.0 or 1.1 and converted to 3.5?
There is no reason for that code anymore. I'm not sure if that is the problem, but it could be.

 

[MarkSweetland]

Another variation to try:

<asp:Button ID="SaveButton" Text="save" OnClientClick="myfun([red]this[/red])" ClientIDMode="Static" runat="server" UseSubmitBehavior="False" />

and JS

function myfun(btn) {
            alert(btn.id);
        }

Mark

"You guys pair up in groups of three, then line up in a circle."
- Bill Peterson, a Florida State football coach

 

[gib99]

Why do you have that declaration for the button? Was this page originally created in 1.0 or 1.1 and converted to 3.5?

Probably, I didn't write the code, I'm only debuggin it.

Another variation to try

Yes, that worked! Thank you.