dsonetomany.cs

进销存

            
            public override DataTable Clone() {
                OrdersDataTable cln = ((OrdersDataTable)(base.Clone()));
                cln.InitVars();
                return cln;
            }
            
            protected override DataTable CreateInstance() {
                return new OrdersDataTable();
            }
            
            internal void InitVars() {
                this.columnOrderID = this.Columns["OrderID"];
                this.columnCustomerID = this.Columns["CustomerID"];
                this.columnEmployeeID = this.Columns["EmployeeID"];
                this.columnOrderDate = this.Columns["OrderDate"];
            }
            
            private void InitClass() {
                this.columnOrderID = new DataColumn("OrderID", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnOrderID);
                this.columnCustomerID = new DataColumn("CustomerID", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnCustomerID);
                this.columnEmployeeID = new DataColumn("EmployeeID", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnEmployeeID);
                this.columnOrderDate = new DataColumn("OrderDate", typeof(System.DateTime), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnOrderDate);
                this.Constraints.Add(new UniqueConstraint("Constraint1", new DataColumn[] {
                                this.columnOrderID}, true));
                this.columnOrderID.AutoIncrement = true;
                this.columnOrderID.AutoIncrementSeed = -1;
                this.columnOrderID.AutoIncrementStep = -1;
                this.columnOrderID.AllowDBNull = false;
                this.columnOrderID.ReadOnly = true;
                this.columnOrderID.Unique = true;
            }
            
            public OrdersRow NewOrdersRow() {
                return ((OrdersRow)(this.NewRow()));
            }
            
            protected override DataRow NewRowFromBuilder(DataRowBuilder builder) {
                return new OrdersRow(builder);
            }
            
            protected override System.Type GetRowType() {
                return typeof(OrdersRow);
            }
            
            protected override void OnRowChanged(DataRowChangeEventArgs e) {
                base.OnRowChanged(e);
                if ((this.OrdersRowChanged != null)) {
                    this.OrdersRowChanged(this, new OrdersRowChangeEvent(((OrdersRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowChanging(DataRowChangeEventArgs e) {
                base.OnRowChanging(e);
                if ((this.OrdersRowChanging != null)) {
                    this.OrdersRowChanging(this, new OrdersRowChangeEvent(((OrdersRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleted(DataRowChangeEventArgs e) {
                base.OnRowDeleted(e);
                if ((this.OrdersRowDeleted != null)) {
                    this.OrdersRowDeleted(this, new OrdersRowChangeEvent(((OrdersRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleting(DataRowChangeEventArgs e) {
                base.OnRowDeleting(e);
                if ((this.OrdersRowDeleting != null)) {
                    this.OrdersRowDeleting(this, new OrdersRowChangeEvent(((OrdersRow)(e.Row)), e.Action));
                }
            }
            
            public void RemoveOrdersRow(OrdersRow row) {
                this.Rows.Remove(row);
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class OrdersRow : DataRow {
            
            private OrdersDataTable tableOrders;
            
            internal OrdersRow(DataRowBuilder rb) : 
                    base(rb) {
                this.tableOrders = ((OrdersDataTable)(this.Table));
            }
            
            public int OrderID {
                get {
                    return ((int)(this[this.tableOrders.OrderIDColumn]));
                }
                set {
                    this[this.tableOrders.OrderIDColumn] = value;
                }
            }
            
            public string CustomerID {
                get {
                    try {
                        return ((string)(this[this.tableOrders.CustomerIDColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableOrders.CustomerIDColumn] = value;
                }
            }
            
            public int EmployeeID {
                get {
                    try {
                        return ((int)(this[this.tableOrders.EmployeeIDColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableOrders.EmployeeIDColumn] = value;
                }
            }
            
            public System.DateTime OrderDate {
                get {
                    try {
                        return ((System.DateTime)(this[this.tableOrders.OrderDateColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableOrders.OrderDateColumn] = value;
                }
            }
            
            public bool IsCustomerIDNull() {
                return this.IsNull(this.tableOrders.CustomerIDColumn);
            }
            
            public void SetCustomerIDNull() {
                this[this.tableOrders.CustomerIDColumn] = System.Convert.DBNull;
            }
            
            public bool IsEmployeeIDNull() {
                return this.IsNull(this.tableOrders.EmployeeIDColumn);
            }
            
            public void SetEmployeeIDNull() {
                this[this.tableOrders.EmployeeIDColumn] = System.Convert.DBNull;
            }
            
            public bool IsOrderDateNull() {
                return this.IsNull(this.tableOrders.OrderDateColumn);
            }
            
            public void SetOrderDateNull() {
                this[this.tableOrders.OrderDateColumn] = System.Convert.DBNull;
            }
            
            public Order_DetailsRow[] GetOrder_DetailsRows() {
                return ((Order_DetailsRow[])(this.GetChildRows(this.Table.ChildRelations["OrderToDetails"])));
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class OrdersRowChangeEvent : EventArgs {
            
            private OrdersRow eventRow;
            
            private DataRowAction eventAction;
            
            public OrdersRowChangeEvent(OrdersRow row, DataRowAction action) {
                this.eventRow = row;
                this.eventAction = action;
            }
            
            public OrdersRow Row {
                get {
                    return this.eventRow;
                }
            }
            
            public DataRowAction Action {
                get {
                    return this.eventAction;
                }
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class EmployeesDataTable : DataTable, System.Collections.IEnumerable {
            
            private DataColumn columnEmployeeID;
            
            private DataColumn columnEmployeeName;
            
            internal EmployeesDataTable() : 
                    base("Employees") {
                this.InitClass();
            }
            
            internal EmployeesDataTable(DataTable table) : 
                    base(table.TableName) {
                if ((table.CaseSensitive != table.DataSet.CaseSensitive)) {
                    this.CaseSensitive = table.CaseSensitive;
                }
                if ((table.Locale.ToString() != table.DataSet.Locale.ToString())) {
                    this.Locale = table.Locale;
                }
                if ((table.Namespace != table.DataSet.Namespace)) {
                    this.Namespace = table.Namespace;
                }
                this.Prefix = table.Prefix;
                this.MinimumCapacity = table.MinimumCapacity;
                this.DisplayExpression = table.DisplayExpression;
            }
            
            [System.ComponentModel.Browsable(false)]
            public int Count {
                get {
                    return this.Rows.Count;
                }
            }
            
            internal DataColumn EmployeeIDColumn {
                get {
                    return this.columnEmployeeID;
                }
            }
            
            internal DataColumn EmployeeNameColumn {
                get {
                    return this.columnEmployeeName;
                }
            }
            
            public EmployeesRow this[int index] {
                get {
                    return ((EmployeesRow)(this.Rows[index]));
                }
            }
            
            public event EmployeesRowChangeEventHandler EmployeesRowChanged;
            
            public event EmployeesRowChangeEventHandler EmployeesRowChanging;
            
            public event EmployeesRowChangeEventHandler EmployeesRowDeleted;
            
            public event EmployeesRowChangeEventHandler EmployeesRowDeleting;
            
            public void AddEmployeesRow(EmployeesRow row) {
                this.Rows.Add(row);
            }
            
            public EmployeesRow AddEmployeesRow(string EmployeeName) {
                EmployeesRow rowEmployeesRow = ((EmployeesRow)(this.NewRow()));
                rowEmployeesRow.ItemArray = new object[] {
                        null,
                        EmployeeName};
                this.Rows.Add(rowEmployeesRow);
                return rowEmployeesRow;
            }
            
            public EmployeesRow FindByEmployeeID(int EmployeeID) {
                return ((EmployeesRow)(this.Rows.Find(new object[] {
                            EmployeeID})));
            }
            
            public System.Collections.IEnumerator GetEnumerator() {
                return this.Rows.GetEnumerator();
            }
            
            public override DataTable Clone() {
                EmployeesDataTable cln = ((EmployeesDataTable)(base.Clone()));
                cln.InitVars();
                return cln;
            }
            
            protected override DataTable CreateInstance() {
                return new EmployeesDataTable();
            }
            
            internal void InitVars() {
                this.columnEmployeeID = this.Columns["EmployeeID"];
                this.columnEmployeeName = this.Columns["EmployeeName"];
            }
            
            private void InitClass() {
                this.columnEmployeeID = new DataColumn("EmployeeID", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnEmployeeID);
                this.columnEmployeeName = new DataColumn("EmployeeName", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnEmployeeName);
                this.Constraints.Add(new UniqueConstraint("Constraint1", new DataColumn[] {
                                this.columnEmployeeID}, true));
                this.columnEmployeeID.AutoIncrement = true;
                this.columnEmployeeID.AllowDBNull = false;
                this.columnEmployeeID.ReadOnly = true;
                this.columnEmployeeID.Unique = true;
                this.columnEmployeeName.ReadOnly = true;
            }
            
            public EmployeesRow NewEmployeesRow() {
                return ((EmployeesRow)(this.NewRow()));
            }
            
            protected override DataRow NewRowFromBuilder(DataRowBuilder builder) {
                return new EmployeesRow(builder);
            }
            
            protected override System.Type GetRowType() {
                return typeof(EmployeesRow);
            }
            
            protected override void OnRowChanged(DataRowChangeEventArgs e) {
                base.OnRowChanged(e);
                if ((this.EmployeesRowChanged != null)) {
                    this.EmployeesRowChanged(this, new EmployeesRowChangeEvent(((EmployeesRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowChanging(DataRowChangeEventArgs e) {
                base.OnRowChanging(e);
                if ((this.EmployeesRowChanging != null)) {
                    this.EmployeesRowChanging(this, new EmployeesRowChangeEvent(((EmployeesRow)(e.Row)), e.Action));
                }
            }