I read up on the page lifecycle but am still not getting this to work
correctly.
I have it in the Page_Init method:
if (this.IsPostBack){
Control cont = new Control();
cont = this.form1.FindControl("CATALOG_ID");
string catId = ((HiddenField)cont).Value;
HiddenField hf = new HiddenField();
hf.ID = "CATALOG_ID";
hf.Value = catId;
hf.EnableViewState = true;
Page.Controls.Add(hf);
}
and then cont = this.form1.FindControl("CATALOG_ID"); returns null
even though it is in the page that is being posted. Is this the
incorrect command to get the input hidden field?
On Sep 10, 2:46 am, Cerebrus <[EMAIL PROTECTED]> wrote:
> Common newbie question, Adailey! The problem can be solved by re-
> adding the controls to the Page's control collection upon postback. I
> suggest reading up on the Page lifecycle in ASP.NET for a better
> understanding of what's going on behind the scenes.
>
> On Sep 10, 1:28 am, adailey <[EMAIL PROTECTED]> wrote:
>
> > I am adding some HiddenFields in the code behind Page_Init method that
> > is getting added to the form via form.Controls.Add(hiddenfield); This
> > works fine. When I view the source code of what is rendered in the
> > browser, it shows up as expected in the source view of the page.
>
> > However, my issue comes when I try to get at those hidden fields after
> > a submit is sent. I would think that in the Page_Init method I would
> > be able to get at those hidden fields Control cont =
> > this.FindControl("ID") but they are not even there. The only Controls
> > that are there are the ones that were created in the aspx page with
> > the <asp:> tags.
>
> > Sorry, this is probably an easy question. Long time Java developer,
> > new to asp.net and C#.
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