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Clear __EVENTARGUMENT?

Is there a way to CLEAR __EVENTARGUMENT or set it to null or to some other value in the C# code behind.

I have a dynamic control with buttons inside of it.

I have the Button onclick set to run a Javascript function where it sets the __EVENTARGUMENT.

But it seems to be firing multiple times, even though I am only clicking the button once.

Amaku

Try setting it to null in your code behind.
Request["__EVENTARGUMENT"]=null;

Tom Knowlton

ASKER

Cannot do that.

Request["__EVENTARGUMENT"]

is read-only.

It is javascript that is populating the event argument.

What I don't understand is why it is firing TWICE.

ASKER CERTIFIED SOLUTION

Bane83

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Tom Knowlton

ASKER

First things first...I'm in C#. :)

The event is being wired thus in the Page_Load for the custom button control:

protected void Page_Load( object sender, EventArgs e )
{
      Button1.Attributes.Clear();
      this.Button1.Attributes.Add("onclick","RespondToNewRowClick(this)");
}

RespondToNewRowClick(this is a javascript function that looks like this:

<script type="text/javascript">
function RespondToNewRowClick(current)
{
      __doPostBack(current.value,'NEWROWBUTTONCLICK');
}
</script>

When the button is clicked, on the server side code I respond to the message:

protected void Page_Load( object sender, EventArgs e )
{
      string tempArgument = Request.Params.Get("__EVENTARGUMENT");

      if (tempArgument == "NEWROWBUTTONCLICK")
      {
            AddToColl();
            TESTCOLLECTION1.AddControlCollection((List<Control>)Cache["ctrls"]);
      }

      if (!Page.IsPostBack)
      {
            Cache.Remove("ctrls");
            AddToColl();
            TESTCOLLECTION1.AddControlCollection((List<Control>)Cache["ctrls"]);
      }

}

I hope this helps you help me some. :)

Bane83

Huh, that's odd.

Could you try adding an alert(current.id); statement into the RespondToNewRowClick event to see if the javascript is also being called more than once?

Please make note of the id's it returns, just in case.