Vista - Obtaining Correct Type with usage of ParseControl()

The following 3 lines of code exist in a user control (Page_Load). Line 3
chokes with the following exception message: "Unable to cast object of type
'System.Web.UI.Control' to type 'System.Web.UI.WebControls.PlaceHolder'."

Why is this? How can I get a proper "PlaceHolder" reference to ctl?

line1: string sTemp = "<asp:PlaceHolder ID=\"MyPH\"
runat=\"server\"></asp:PlaceHolder>";

line2: Control ctl = this.ParseControl(sTemp);

line3: System.Web.UI.WebControls.PlaceHolder px =
(System.Web.UI.WebControls.PlaceHolder)ctl;

fwiw: I'm using .NET 3.5.

Thanks.

why use parse control for this? just create the control, its much better
coding.

var px = new System.Web.UI.WebControls.PlaceHolder();
px.ID = "MyPH";
this.Controls.Add(px);

you original problem is parse control returns user control containing
the placeholder as a child control.

-- bruce (sqlwork.com)


Jordan S. wrote:

Thanks Bruce... the piece I was missing was that ParseControl returns a user
control that in turn contains the PlaceHolder as a child. That's helpful to
know.

I'm using ParseControl for this because I have an HTML string that contains
one or more PlaceHolder controls, and I was having difficulty getting to the
correct collection. The shortened HTML snippet in the OP was just for the
sake of brevity.

Thanks again.



"bruce barker" <nospam@xxxxxx> wrote in message
news:O3mwOhsHJHA.1160@xxxxxx