Viewstate and user control

[Hardy Wang]

Hi all,
I have a main ASPX page, and a control ASCX page, there is a Repeater
control in ASCX page, and several drop down boxes in main page. These drop
down boxes will trigger postback.
In the ASCX page, if I put code like
private void Page_Load(objec t sender, System.EventArg s e) {
if (! Page.IsPostBack ) {
Data_Binding(); // to populate values in Repeater
}
}
Everytime when the page posts back because of drop down box selection
change, I loose all content in the Repeater. I enabled ViewState in ASCX and
Repeater control. If I let page to run Data_Binding() regardless of postback
status, then it is fine.
In my mind, Viewstate should remember what is for Repeater, I should not
need to commnet out the line if (! Page.IsPostBack ) to make page to recreate
the Repeater everytime.

Any idea?

Thanks!

--
WWW: http://hardywang.1accesshost.com
ICQ: 3359839
yours Hardy

[cbDevelopment]

Re: Viewstate and user control

The only time I have seen this behavior is when the main page is loading
the control dynamically using LoadControl().

"Hardy Wang" <hardywang@hotm ail.com> wrote in
news:u7cDUg4yFH A.2960@tk2msftn gp13.phx.gbl:
[color=blue]
> Hi all,
> I have a main ASPX page, and a control ASCX page, there is a
> Repeater
> control in ASCX page, and several drop down boxes in main page. These
> drop down boxes will trigger postback.
> In the ASCX page, if I put code like
> private void Page_Load(objec t sender, System.EventArg s e) {
> if (! Page.IsPostBack ) {
> Data_Binding(); // to populate values in Repeater
> }
> }
> Everytime when the page posts back because of drop down box
> selection
> change, I loose all content in the Repeater. I enabled ViewState in
> ASCX and Repeater control. If I let page to run Data_Binding()
> regardless of postback status, then it is fine.
> In my mind, Viewstate should remember what is for Repeater, I
> should not
> need to commnet out the line if (! Page.IsPostBack ) to make page to
> recreate the Repeater everytime.
>
> Any idea?
>
> Thanks!
>[/color]