dsonetomany.cs

进销存

            protected override void OnRowDeleted(DataRowChangeEventArgs e) {
                base.OnRowDeleted(e);
                if ((this.EmployeesRowDeleted != null)) {
                    this.EmployeesRowDeleted(this, new EmployeesRowChangeEvent(((EmployeesRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleting(DataRowChangeEventArgs e) {
                base.OnRowDeleting(e);
                if ((this.EmployeesRowDeleting != null)) {
                    this.EmployeesRowDeleting(this, new EmployeesRowChangeEvent(((EmployeesRow)(e.Row)), e.Action));
                }
            }
            
            public void RemoveEmployeesRow(EmployeesRow row) {
                this.Rows.Remove(row);
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class EmployeesRow : DataRow {
            
            private EmployeesDataTable tableEmployees;
            
            internal EmployeesRow(DataRowBuilder rb) : 
                    base(rb) {
                this.tableEmployees = ((EmployeesDataTable)(this.Table));
            }
            
            public int EmployeeID {
                get {
                    return ((int)(this[this.tableEmployees.EmployeeIDColumn]));
                }
                set {
                    this[this.tableEmployees.EmployeeIDColumn] = value;
                }
            }
            
            public string EmployeeName {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.EmployeeNameColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableEmployees.EmployeeNameColumn] = value;
                }
            }
            
            public bool IsEmployeeNameNull() {
                return this.IsNull(this.tableEmployees.EmployeeNameColumn);
            }
            
            public void SetEmployeeNameNull() {
                this[this.tableEmployees.EmployeeNameColumn] = System.Convert.DBNull;
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class EmployeesRowChangeEvent : EventArgs {
            
            private EmployeesRow eventRow;
            
            private DataRowAction eventAction;
            
            public EmployeesRowChangeEvent(EmployeesRow row, DataRowAction action) {
                this.eventRow = row;
                this.eventAction = action;
            }
            
            public EmployeesRow Row {
                get {
                    return this.eventRow;
                }
            }
            
            public DataRowAction Action {
                get {
                    return this.eventAction;
                }
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class ProductsDataTable : DataTable, System.Collections.IEnumerable {
            
            private DataColumn columnProductID;
            
            private DataColumn columnProductName;
            
            private DataColumn columnUnitPrice;
            
            internal ProductsDataTable() : 
                    base("Products") {
                this.InitClass();
            }
            
            internal ProductsDataTable(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 ProductIDColumn {
                get {
                    return this.columnProductID;
                }
            }
            
            internal DataColumn ProductNameColumn {
                get {
                    return this.columnProductName;
                }
            }
            
            internal DataColumn UnitPriceColumn {
                get {
                    return this.columnUnitPrice;
                }
            }
            
            public ProductsRow this[int index] {
                get {
                    return ((ProductsRow)(this.Rows[index]));
                }
            }
            
            public event ProductsRowChangeEventHandler ProductsRowChanged;
            
            public event ProductsRowChangeEventHandler ProductsRowChanging;
            
            public event ProductsRowChangeEventHandler ProductsRowDeleted;
            
            public event ProductsRowChangeEventHandler ProductsRowDeleting;
            
            public void AddProductsRow(ProductsRow row) {
                this.Rows.Add(row);
            }
            
            public ProductsRow AddProductsRow(string ProductName, System.Decimal UnitPrice) {
                ProductsRow rowProductsRow = ((ProductsRow)(this.NewRow()));
                rowProductsRow.ItemArray = new object[] {
                        null,
                        ProductName,
                        UnitPrice};
                this.Rows.Add(rowProductsRow);
                return rowProductsRow;
            }
            
            public ProductsRow FindByProductID(int ProductID) {
                return ((ProductsRow)(this.Rows.Find(new object[] {
                            ProductID})));
            }
            
            public System.Collections.IEnumerator GetEnumerator() {
                return this.Rows.GetEnumerator();
            }
            
            public override DataTable Clone() {
                ProductsDataTable cln = ((ProductsDataTable)(base.Clone()));
                cln.InitVars();
                return cln;
            }
            
            protected override DataTable CreateInstance() {
                return new ProductsDataTable();
            }
            
            internal void InitVars() {
                this.columnProductID = this.Columns["ProductID"];
                this.columnProductName = this.Columns["ProductName"];
                this.columnUnitPrice = this.Columns["UnitPrice"];
            }
            
            private void InitClass() {
                this.columnProductID = new DataColumn("ProductID", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnProductID);
                this.columnProductName = new DataColumn("ProductName", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnProductName);
                this.columnUnitPrice = new DataColumn("UnitPrice", typeof(System.Decimal), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnUnitPrice);
                this.Constraints.Add(new UniqueConstraint("Constraint1", new DataColumn[] {
                                this.columnProductID}, true));
                this.columnProductID.AutoIncrement = true;
                this.columnProductID.AllowDBNull = false;
                this.columnProductID.ReadOnly = true;
                this.columnProductID.Unique = true;
                this.columnProductName.AllowDBNull = false;
            }
            
            public ProductsRow NewProductsRow() {
                return ((ProductsRow)(this.NewRow()));
            }
            
            protected override DataRow NewRowFromBuilder(DataRowBuilder builder) {
                return new ProductsRow(builder);
            }
            
            protected override System.Type GetRowType() {
                return typeof(ProductsRow);
            }
            
            protected override void OnRowChanged(DataRowChangeEventArgs e) {
                base.OnRowChanged(e);
                if ((this.ProductsRowChanged != null)) {
                    this.ProductsRowChanged(this, new ProductsRowChangeEvent(((ProductsRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowChanging(DataRowChangeEventArgs e) {
                base.OnRowChanging(e);
                if ((this.ProductsRowChanging != null)) {
                    this.ProductsRowChanging(this, new ProductsRowChangeEvent(((ProductsRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleted(DataRowChangeEventArgs e) {
                base.OnRowDeleted(e);
                if ((this.ProductsRowDeleted != null)) {
                    this.ProductsRowDeleted(this, new ProductsRowChangeEvent(((ProductsRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleting(DataRowChangeEventArgs e) {
                base.OnRowDeleting(e);
                if ((this.ProductsRowDeleting != null)) {
                    this.ProductsRowDeleting(this, new ProductsRowChangeEvent(((ProductsRow)(e.Row)), e.Action));
                }
            }
            
            public void RemoveProductsRow(ProductsRow row) {
                this.Rows.Remove(row);
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class ProductsRow : DataRow {
            
            private ProductsDataTable tableProducts;
            
            internal ProductsRow(DataRowBuilder rb) : 
                    base(rb) {
                this.tableProducts = ((ProductsDataTable)(this.Table));
            }
            
            public int ProductID {
                get {
                    return ((int)(this[this.tableProducts.ProductIDColumn]));
                }
                set {
                    this[this.tableProducts.ProductIDColumn] = value;
                }
            }
            
            public string ProductName {
                get {
                    return ((string)(this[this.tableProducts.ProductNameColumn]));
                }
                set {
                    this[this.tableProducts.ProductNameColumn] = value;
                }
            }
            
            public System.Decimal UnitPrice {
                get {
                    try {
                        return ((System.Decimal)(this[this.tableProducts.UnitPriceColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableProducts.UnitPriceColumn] = value;
                }
            }
            
            public bool IsUnitPriceNull() {
                return this.IsNull(this.tableProducts.UnitPriceColumn);
            }
            
            public void SetUnitPriceNull() {
                this[this.tableProducts.UnitPriceColumn] = System.Convert.DBNull;
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class ProductsRowChangeEvent : EventArgs {
            
            private ProductsRow eventRow;
            
            private DataRowAction eventAction;
            
            public ProductsRowChangeEvent(ProductsRow row, DataRowAction action) {
                this.eventRow = row;
                this.eventAction = action;
            }
            
            public ProductsRow Row {
                get {
                    return this.eventRow;
                }
            }
            
            public DataRowAction Action {
                get {
                    return this.eventAction;
                }
            }
        }
    }
}