public void FillDistrict() { DataTable dt = new DataTable(); LoginUserTableAdapter gt = new LoginUserTableAdapter(); dt = gt.GetDistrictByState(" "); District_ddl.DataSource = dt; District_ddl.DataValueField = "DistrictID"; District_ddl.DataTextField = "DistrictName"; District_ddl.DataBind(); ListItem lit = new ListItem("--select---", "-1"); District_ddl.Items.Insert(0, lit); }
protected void State_ddl_SelectedIndexChanged(object sender, EventArgs e) { DataTable dt = new DataTable(); LoginUserTableAdapter gt = new LoginUserTableAdapter(); string guid = State_ddl.SelectedValue; dt = gt.GetDistrictByState(guid); District_ddl.DataSource = dt; District_ddl.DataValueField = "DistrictID"; District_ddl.DataTextField = "DistrictName"; District_ddl.DataBind(); ListItem lit = new ListItem("--select---", "-1"); District_ddl.Items.Insert(0, lit); Page.MaintainScrollPositionOnPostBack = true; }