DropdownLisr problem on postback

[Herman Geovany Ayala Zúñiga]

Hi.

I working with dropdownlist control, this control is populated with a
collection. when the page has a postback i tried to get the new
selectedindex that the user select but always is 0. What happening? What
can i do? this control doný fire teh postback.

Regards

 

[Chison Cai]

HI,
Is it running the "DataBinding" code to re-bind the dropdownlist when
the page is postback ?

 

[Herman Geovany Ayala Zúñiga]

Chison Cai escribió:

HI,
Is it running the "DataBinding" code to re-bind the dropdownlist when
the page is postback ?

I do that to populate again the dropdownlist but i want to get the
selectedindex when the postback fires

regards

 

[Chison Cai]

You should NOT re-bind the dropdownlist when the page is postback...
cos it will refresh the dropdownlist's DataSource and reset the
selectedindex to 0 .

you just need to have data binded when the page is not PostBack.
like this:

private void Page_Load(object sender, System.EventArgs e)
{
if (!Page.IsPostBack)
{
//binding dropdownlist
}
}

holp it helps

Regards,
chison