DropDownList1_SelectedIndexChanged

I have a basic drop-down list on my page, auto postback set to true... with the below simple code on the selected index changed event i put the selected index into an int variable....

selected always returns as 0 (zero) regardless of the item selected. Or if I change to use a string with SelectedValue it always returns the first item in the list... Do I have to do something special to get it working???

private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
{
     int selected = DropDownList1.SelectedIndex;
}