dscustomerorders.cs

东软内部材料（六）ado .net相关

            }
            
            public string CompanyName {
                get {
                    try {
                        return ((string)(this[this.tableCustomerList.CompanyNameColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableCustomerList.CompanyNameColumn] = value;
                }
            }
            
            public string CustomerID {
                get {
                    return ((string)(this[this.tableCustomerList.CustomerIDColumn]));
                }
                set {
                    this[this.tableCustomerList.CustomerIDColumn] = value;
                }
            }
            
            public string FullID {
                get {
                    try {
                        return ((string)(this[this.tableCustomerList.FullIDColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableCustomerList.FullIDColumn] = value;
                }
            }
            
            public bool IsCompanyNameNull() {
                return this.IsNull(this.tableCustomerList.CompanyNameColumn);
            }
            
            public void SetCompanyNameNull() {
                this[this.tableCustomerList.CompanyNameColumn] = System.Convert.DBNull;
            }
            
            public bool IsFullIDNull() {
                return this.IsNull(this.tableCustomerList.FullIDColumn);
            }
            
            public void SetFullIDNull() {
                this[this.tableCustomerList.FullIDColumn] = System.Convert.DBNull;
            }
            
            public OrdersRow[] GetOrdersRows() {
                return ((OrdersRow[])(this.GetChildRows(this.Table.ChildRelations["CustomerListOrders"])));
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class CustomerListRowChangeEvent : EventArgs {
            
            private CustomerListRow eventRow;
            
            private DataRowAction eventAction;
            
            public CustomerListRowChangeEvent(CustomerListRow row, DataRowAction action) {
                this.eventRow = row;
                this.eventAction = action;
            }
            
            public CustomerListRow Row {
                get {
                    return this.eventRow;
                }
            }
            
            public DataRowAction Action {
                get {
                    return this.eventAction;
                }
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class OrdersDataTable : DataTable, System.Collections.IEnumerable {
            
            private DataColumn columnOrderID;
            
            private DataColumn columnCustomerID;
            
            private DataColumn columnOrderDate;
            
            internal OrdersDataTable() : 
                    base("Orders") {
                this.InitClass();
            }
            
            internal OrdersDataTable(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 OrderIDColumn {
                get {
                    return this.columnOrderID;
                }
            }
            
            internal DataColumn CustomerIDColumn {
                get {
                    return this.columnCustomerID;
                }
            }
            
            internal DataColumn OrderDateColumn {
                get {
                    return this.columnOrderDate;
                }
            }
            
            public OrdersRow this[int index] {
                get {
                    return ((OrdersRow)(this.Rows[index]));
                }
            }
            
            public event OrdersRowChangeEventHandler OrdersRowChanged;
            
            public event OrdersRowChangeEventHandler OrdersRowChanging;
            
            public event OrdersRowChangeEventHandler OrdersRowDeleted;
            
            public event OrdersRowChangeEventHandler OrdersRowDeleting;
            
            public void AddOrdersRow(OrdersRow row) {
                this.Rows.Add(row);
            }
            
            public OrdersRow AddOrdersRow(CustomerListRow parentCustomerListRowByCustomerListOrders, System.DateTime OrderDate) {
                OrdersRow rowOrdersRow = ((OrdersRow)(this.NewRow()));
                rowOrdersRow.ItemArray = new object[] {
                        null,
                        parentCustomerListRowByCustomerListOrders[1],
                        OrderDate};
                this.Rows.Add(rowOrdersRow);
                return rowOrdersRow;
            }
            
            public OrdersRow FindByOrderID(int OrderID) {
                return ((OrdersRow)(this.Rows.Find(new object[] {
                            OrderID})));
            }
            
            public System.Collections.IEnumerator GetEnumerator() {
                return this.Rows.GetEnumerator();
            }
            
            public override DataTable Clone() {
                OrdersDataTable cln = ((OrdersDataTable)(base.Clone()));
                cln.InitVars();
                return cln;
            }
            
            internal void InitVars() {
                this.columnOrderID = this.Columns["OrderID"];
                this.columnCustomerID = this.Columns["CustomerID"];
                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.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.AllowDBNull = false;
                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("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableOrders.CustomerIDColumn] = value;
                }
            }
            
            public System.DateTime OrderDate {
                get {
                    try {
                        return ((System.DateTime)(this[this.tableOrders.OrderDateColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableOrders.OrderDateColumn] = value;
                }
            }
            
            public CustomerListRow CustomerListRow {
                get {
                    return ((CustomerListRow)(this.GetParentRow(this.Table.ParentRelations["CustomerListOrders"])));
                }
                set {
                    this.SetParentRow(value, this.Table.ParentRelations["CustomerListOrders"]);
                }
            }
            
            public bool IsCustomerIDNull() {
                return this.IsNull(this.tableOrders.CustomerIDColumn);
            }
            
            public void SetCustomerIDNull() {
                this[this.tableOrders.CustomerIDColumn] = System.Convert.DBNull;
            }
            
            public bool IsOrderDateNull() {
                return this.IsNull(this.tableOrders.OrderDateColumn);
            }
            
            public void SetOrderDateNull() {
                this[this.tableOrders.OrderDateColumn] = System.Convert.DBNull;
            }
        }
        
        [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;
                }
            }
        }
    }
}