if (dtTable != null && dtTable.Rows.Count > 0)
{
List<ClientStruct> list = (from a in dtTable.AsEnumerable()
orderby a.Field<string>("Company")
select new ClientStruct
{ ID = a.Field<Int32>("ID").ToString(),
Name = a.Field<string>("Name"),
Company = a.Field<string>("Company"),
CreateDate = a.Field<DateTime>("CreatedDate").ToString("yyyy-MM-dd") }).ToList<ClientStruct>();
}