Problem creating web user control

[Calvin Lai]

Hi all,

I have a problem in creating web user control *programatically*. Problem as
follows:

1. WebUserControl1 contains a server side table named Table1
2. WebForm1 contain a server panel and server form.
3. In WebForm1.aspx.cs, I created a WebUserControl1 and attached it to panel
by:
WebUserControl1 oCtl = new WebUserControl1();
panel.Controls.Add(oCtl);
4. I have put a message in WebUserControl1:age_Load() to display the
validity (null or not null) of the server side table Table1
5. When I load the WebForm1, the Page_Load of WebUSerControl1 was loaded
twice (first problem), and both of them shows that the Table1 is null!
(problem 2)

Any one pls help...I am hopeless here. Thanks.

Calvin

 

[Kevin Spencer]

The correct syntax for adding a User Control programmatically to a Page or
Control would be to use the Page.LoadControl() method. Example:

WebUserControl1 oCtl = LoadControl("WebUserControl1.ascx");
panelID.Controls.Add(oCtl);

--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Big things are made up
of lots of little things.

 

[Calvin Lai]

Hi,
It there any difference in the process of creation between the two? (new Vs
LoadControl). Thanks for your help.

 

[Kevin Spencer]

It there any difference in the process of creation between the two? (new
Vs

LoadControl). Thanks for your help.

....besides the fact that one method works and the other doesn't? ;-)

I'm not sure offhand, although I'm sure if I spent some time researching it
I'm sure I could find out. I suspect it is because the User Control, like
the Page class, is a Templated Control. When you call New on the class, you
don't get the Template, just the CodeBehind class. Calling LoadControl()
instantiates the Template which inherits the CodeBehind.

--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Big things are made up
of lots of little things.