System.Data.Tests.DataSetTypedDataSetTest.myTypedDataSet.Order_DetailsDataTable.InitClass C# (CSharp) Метод

                private void InitClass()
                {
                    _columnOrderID = new DataColumn("OrderID", typeof(int), null, MappingType.Element);
                    Columns.Add(_columnOrderID);
                    _columnProductID = new DataColumn("ProductID", typeof(int), null, MappingType.Element);
                    Columns.Add(_columnProductID);
                    _columnUnitPrice = new DataColumn("UnitPrice", typeof(decimal), null, MappingType.Element);
                    Columns.Add(_columnUnitPrice);
                    _columnQuantity = new DataColumn("Quantity", typeof(short), null, MappingType.Element);
                    Columns.Add(_columnQuantity);
                    _columnDiscount = new DataColumn("Discount", typeof(string), null, MappingType.Element);
                    Columns.Add(_columnDiscount);
                    Constraints.Add(new UniqueConstraint("Constraint1", new DataColumn[] {
                                                                                                  _columnOrderID,
                                                                                                  _columnProductID}, true));
                    _columnOrderID.AllowDBNull = false;
                    _columnProductID.AllowDBNull = false;
                    _columnUnitPrice.AllowDBNull = false;
                    _columnQuantity.AllowDBNull = false;
                    _columnDiscount.ReadOnly = true;
                }