setting a web control's ID programatically

lcsgeek · January 24th, 2005, 10:10 AM

is it possible to set a web control's "ID" property programatically?
for instance?

Code:

Dim myControlId As String

myControlId = "idWhatever"
.
.
.
.
<asp:button id='<%# myControlId%>' ....

bmains · January 24th, 2005, 11:09 AM

I don't think like that, you can set it in code-behind as such:

myControlId.ID = "idWhatever"

Brian

lcsgeek · January 24th, 2005, 12:12 PM

Quote:

quote:Originally posted by bmains
I don't think like that, you can set it in code-behind as such:

myControlId.ID = "idWhatever"

Brian

thanks for the reply Brian but you have really confused me. in your snippet myConrtrolId, i think, references a control by its id value. therin lies my problem, the id is what i'm trying to set. according to my understanding one can set all properties per your example except for the id.

Imar · January 24th, 2005, 02:50 PM

AFAIK, you cannot set the ID of a control in the ASPX portion of the code dynamically.

However, you can do something like this:

Dim myTextBox As TextBox = New TextBox()
myTextBox.ID = "WhatEverYouWantItToBe"
MyPlaceHolder.Controls.Add(myTextBox)

Then in your ASPX add a placeholder like this:

<asp:PlaceHolder id="MyPlaceHolder" runat="server" />

This allows you to create a textbox on the fly, set its ID and add it to the page dynamically.

Be aware of the ID: If you're adding the control to another repeating control (like a DataGrid or the Repeater) you'll need to make sure the ID is unique in the scope. I think you can use INamingContainer for that, but I can't remember how to use that exactly. I am also not sure if the container control handles this automatically for you, so you'll need to do a bit of testing to make sure this works.

Cheers,

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
While typing this post, I was listening to: Die Interimsliebenden by EinstÃ¼rzende Neubauten (Track 1 from the album: Tabula Rasa) What's This?