"Hei" <chun_hei@msn.com> wrote in message
news:%23ruYNcs0DHA.2948@TK2MSFTNGP09.phx.gbl...
> hi,
>
> i using follow code to provide selection in a DropDownList , but it always
> return first item value for every selected item after click submit button.
> is it about postback problem?
>
> ddlClientName.DataSource = objcommand.ExecuteReader
> ddlClientName.DataValueField = "ID"
> ddlClientName.DataTextField = "Name"
> ddlClientName.DataBind()
>
> hei
>
>

"Teemu Keiski" <joteke@aspalliance.com> wrote in message
news:ubZVAgs0DHA.1736@TK2MSFTNGP09.phx.gbl...
> Hi,
>
> put the code in question inside IsPostBack check.
>
> If Not Page.IsPostBack Then
> '...
> ddlClientName.DataSource = objcommand.ExecuteReader
> ddlClientName.DataValueField = "ID"
> ddlClientName.DataTextField = "Name"
> ddlClientName.DataBind()
> End if
>
> If the databinding code isn't inside IsPostBack check, DropDownList will
be
> databound on every request.This causes the effect you mentioned that
> selections are not preserved between postbacks
>
> --
> Teemu Keiski
> MCP, Microsoft MVP (ASP.NET), AspInsiders member
> ASP.NET Forum Moderator, AspAlliance Columnist
>
> "Hei" <chun_hei@msn.com> wrote in message
> news:%23ruYNcs0DHA.2948@TK2MSFTNGP09.phx.gbl...
> > hi,
> >
> > i using follow code to provide selection in a DropDownList , but it
always
> > return first item value for every selected item after click submit
button.
> > is it about postback problem?
> >
> > ddlClientName.DataSource = objcommand.ExecuteReader
> > ddlClientName.DataValueField = "ID"
> > ddlClientName.DataTextField = "Name"
> > ddlClientName.DataBind()
> >
> > hei
> >
> >
>
>