void BindECs()
{
string UnitID = ddl_UnitID.SelectedValue;
if (UnitID.Equals(""))
{
return;
}
ddl_ECID.Items.Clear();
DataTable dt = ECTagDal.GetECByUnit(UnitID);
foreach (DataRow dr in dt.Rows)
{
ddl_ECID.Items.Add(new ListItem(dr["Name"].ToString(), dr["ID"].ToString()));
}
}