public virtual Order.Order_DetailsDataTable GetDataBy(global::System.Nullable<int> OrderID) {
this.Adapter.SelectCommand = this.CommandCollection[1];
if ((OrderID.HasValue == true)) {
this.Adapter.SelectCommand.Parameters[0].Value = ((int)(OrderID.Value));
}
else {
this.Adapter.SelectCommand.Parameters[0].Value = global::System.DBNull.Value;
}
Order.Order_DetailsDataTable dataTable = new Order.Order_DetailsDataTable();
this.Adapter.Fill(dataTable);
return dataTable;
}