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PlaceHolder, TreeView, UserControl

Hi all

I'm trying ing to create usercontrols dynamically and add them into a
placeholder. During a postback i got the following error

" Failed to load viewstate. The control tree into which viewstate is being
loaded must match the control tree that was used to save viewstate during
the previous request. For example, when adding controls dynamically, the
controls added during a post-back must match the type and position of the
controls added during the initial request. "
Is there any way I can solve this problem?
Nov 16 '05 #1
2 2465
It sounds like you are not readding the controls during the postback like
the message says.

"Hai Nguyen" <ha******@neo.t amu.edu> wrote in message
news:uC******** *******@TK2MSFT NGP09.phx.gbl.. .
Hi all

I'm trying ing to create usercontrols dynamically and add them into a
placeholder. During a postback i got the following error

" Failed to load viewstate. The control tree into which viewstate is being
loaded must match the control tree that was used to save viewstate during
the previous request. For example, when adding controls dynamically, the
controls added during a post-back must match the type and position of the
controls added during the initial request. "
Is there any way I can solve this problem?

Nov 16 '05 #2
Dynamically loading controls is often safer to do during the Init
event, before viewstate loads. Otherwise the viewstate, which is array
indexed, gets out of synch with the controls on the page.

--
Scott
http://www.OdeToCode.com

On Fri, 11 Jun 2004 14:20:56 -0500, "Hai Nguyen"
<ha******@neo.t amu.edu> wrote:
Hi all

I'm trying ing to create usercontrols dynamically and add them into a
placeholder. During a postback i got the following error

" Failed to load viewstate. The control tree into which viewstate is being
loaded must match the control tree that was used to save viewstate during
the previous request. For example, when adding controls dynamically, the
controls added during a post-back must match the type and position of the
controls added during the initial request. "
Is there any way I can solve this problem?


Nov 16 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

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