private void ViewDistrict()
{
ddlDistrict.Items.Clear();
ddlDistrict.Items.Add(new ListItem("-Chọn Quận (huyện)-", "0"));
List <DistrictInfo> listDistrictInfos = DistrictService.DistrictInfo_GetByTop("100", "CityCode = 1", "DistrictID");
for (int i = 0; i < listDistrictInfos.Count; i++)
{
ListItem lsListItem = new ListItem(listDistrictInfos[i].DistrictName, listDistrictInfos[i].DistrictID);
ddlDistrict.Items.Add(lsListItem);
}
listDistrictInfos.Clear();
listDistrictInfos = null;
}