Could you post your code for creating the TextBox
& code for your Page_Load?
[quoted text, click to view] Simon Harvey wrote:
> Hi everyone,
>
> I'm having a problem with getting a control that I'm using to work.
>
> I have a placeholder control sitting within a user control.
>
> On certain occasions at runtime I create a Textbox control and add it to the
> placeholder. This works well almost all the time.
>
> Unfortunately there is one scenario when it doesnt work. The textbox doesnt
> seem to be initialised whereas it normally is.
>
> Does anyone know why it should work sometimes but not others?
>
> I think its something to do with me needing to initialise the Textbox
> control myself. Could someone show me how to do that and where to put the
> code? I've tried just creating a new textbox, setting its Text and then
> adding it to the pages control collection. This just ends up adding a new
> textbox to the form :-(
>
> If anyone could help with this I would be very greatful. I've heard lots of
> people saying that you need to initialise your user controls manually but iv
> never seen a decent example of where and how to do it.
>
> Thanks
>
> Simon
>
>
>
Ok, thanks for your reply.
If the textbox should be displayed, as determined on the first request to
the page - I make a control and add it to the placeholder:
txtUsername = new TextBox();
txtUsername.ID = "txtUsername";
txtUsername.BorderWidth = 1;
txtUsername.BorderStyle = BorderStyle.Solid;
phUsernamePlaceholder.Controls.Add(txtUsername);
Later, if the situation is a postback I have:
txtUsername = new TextBox();
txtUsername.ID = "txtUsername";
txtUsername.BorderStyle = BorderStyle.Solid;
txtUsername.BorderWidth = new Unit(1);
txtUsername.Text = Request.Form["createUserControl:txtUsername"];
This now seems to be working but I'm not 100% sure why. Is this normally
what you have to do with controls? Seems quite simple. You don't have to do
anything special - just create a new txt box and make sure it has the same
name as the one that should be on the page?
Thanks
Simon
