Forms Data Controls :: Fill A Dropdownlist Box In Repeater?

I have bind the Repeater control . After filling the Repeater control . I am dynamically binding the Dropdownlist. Now , if i have 3 rows in repeater the last two rows are binded in dropdownlist but i am unable to bind the first record's dropdownlist. Here's my code for dropdownlist binding

foreach (RepeaterItem item in Rpt_TaskList.Items)
{
DropDownList ddl = (DropDownList)(e.Item.FindControl("ddl_StdResourceName"));
objTrackerPage = new TrackerPage();
DataSet Dset = objTrackerPage.GetResourceName(Session["ResourceName"].ToString());
if (Dset.Tables[0].Rows.Count > 0 && ddl!= null)
{
ddl.DataSource = Dset;
ddl.DataTextField = "ResourceName";
ddl.DataValueField = "ResourceId";
ddl.DataBind();
}
}
}