asked on

Programatically added user control's IsPostback property

Hello all,

We are programatically loading user controls at run time using a place holder control. The IsPostback property of these programatically loaded user controls are always true in the UC's Page_Load, Page_PreRender and Init events. In this case I need to populate a drop down list on the UC, but I only want to do this once when it's initially loaded. Is there a way to detect an initial load for a dynamically added user control?

martie_11

Assuming A.aspx loads user control B through a placeholder:

In A.aspx:

protected override bool OnBubbleEvent(object source, EventArgs args)
{
      B B1 = source as B;

      if (B1 != null)
      {
            // do what ever yo want
            return true; // to stop further bubbling of event
      }
      return base.OnBubbleEvent (source, args);
}

In B.aspx.cs - the user control:

private void Page_Load(object sender, System.EventArgs e)
{
      if (!IsPostBack)
      {
            RaiseBubbleEvent(this, e);
      }
}

...That just might do it : )

martie_11

In B.aspx.cs - the user control

should be

In B.ascx.cs - the user control

...Although now that I re-read the Q, I'm not entirely convinced I anwered it... : p

ASKER CERTIFIED SOLUTION

NowaY

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial