State not preserved in inner controls of ASCX control

[Oleg Ogurok]

Hi all,

In my page class, I'm loading a user control:

private void Page_Load(object sender, System.EventArgs e)
{
Control c = LoadControl("WebUserControl1.ascx");
Controls.AddAt(0, c);

}

Inside WebUserControl1.ascx I have a hyperlink whose NavigateUrl property is
set at runtime (e.g. in Page_Load). Here's the code form
WebUserControl1.ascx.cs

private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
HyperLink1.NavigateUrl = "/SomePage";
}

The problem is that if my page has a control that causes postback (e.g.
Button), the next time the page loads, the hyperlink inside the user control
doesn't retain its NavigateUrl property. I'm wondering why this is
happening.

In my scenario, I can't drop the user control (ASCX) on the page, because
the page is a bare .cs class (base page) without ASPX.

Thanks,
-Oleg.

 

[Teemu Keiski]

Hi,

try such that don't use Controls.AddAt, but instead put a placeholder onto
the Page and add the user control to its Controls collection or optionally
use Controls[1].Controls.Add(c); (By default Form is at this index so this
is same as adding Control to Form's Controls collection)