product.cs

C#高级编程第四版 第十九章源代码 敬请下载

                get {
                    return this.evArgs.Column;
                }
            }
            
            public short ProposedValue {
                get {
                    return ((short)(this.evArgs.ProposedValue));
                }
                set {
                    this.evArgs.ProposedValue = ((short)(value));
                }
            }
        }
        
        public delegate void UnitsOnOrderChangeEventHandler(ProductDataTable sender, UnitsOnOrderChangeEventArg e);
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class UnitsOnOrderChangeEventArg : System.EventArgs {
            
            private System.Data.DataColumnChangeEventArgs evArgs;
            
            public UnitsOnOrderChangeEventArg(System.Data.DataColumnChangeEventArgs args) {
                this.evArgs = args;
            }
            
            public ProductRow Row {
                get {
                    return ((ProductRow)(this.evArgs.Row));
                }
            }
            
            public System.Data.DataColumn UnitsOnOrderColumn {
                get {
                    return this.evArgs.Column;
                }
            }
            
            public short ProposedValue {
                get {
                    return ((short)(this.evArgs.ProposedValue));
                }
                set {
                    this.evArgs.ProposedValue = ((short)(value));
                }
            }
        }
        
        public delegate void ReorderLevelChangeEventHandler(ProductDataTable sender, ReorderLevelChangeEventArg e);
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class ReorderLevelChangeEventArg : System.EventArgs {
            
            private System.Data.DataColumnChangeEventArgs evArgs;
            
            public ReorderLevelChangeEventArg(System.Data.DataColumnChangeEventArgs args) {
                this.evArgs = args;
            }
            
            public ProductRow Row {
                get {
                    return ((ProductRow)(this.evArgs.Row));
                }
            }
            
            public System.Data.DataColumn ReorderLevelColumn {
                get {
                    return this.evArgs.Column;
                }
            }
            
            public short ProposedValue {
                get {
                    return ((short)(this.evArgs.ProposedValue));
                }
                set {
                    this.evArgs.ProposedValue = ((short)(value));
                }
            }
        }
        
        public delegate void DiscontinuedChangeEventHandler(ProductDataTable sender, DiscontinuedChangeEventArg e);
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class DiscontinuedChangeEventArg : System.EventArgs {
            
            private System.Data.DataColumnChangeEventArgs evArgs;
            
            public DiscontinuedChangeEventArg(System.Data.DataColumnChangeEventArgs args) {
                this.evArgs = args;
            }
            
            public ProductRow Row {
                get {
                    return ((ProductRow)(this.evArgs.Row));
                }
            }
            
            public System.Data.DataColumn DiscontinuedColumn {
                get {
                    return this.evArgs.Column;
                }
            }
            
            public bool ProposedValue {
                get {
                    return ((bool)(this.evArgs.ProposedValue));
                }
                set {
                    this.evArgs.ProposedValue = ((bool)(value));
                }
            }
        }
    }
    
    [System.Diagnostics.DebuggerStepThrough()]
    public class ProductRow : System.Data.DataRow {
        
        private ProductDataTable tableProduct;
        
        internal ProductRow(System.Data.DataRowBuilder rb) : 
                base(rb) {
            this.tableProduct = ((ProductDataTable)(this.Table));
        }
        
        public int ProductID {
            get {
                return ((int)(this[this.tableProduct.ProductIDColumn]));
            }
            set {
                this[this.tableProduct.ProductIDColumn] = value;
            }
        }
        
        public string ProductName {
            get {
                return ((string)(this[this.tableProduct.ProductNameColumn]));
            }
            set {
                this[this.tableProduct.ProductNameColumn] = value;
            }
        }
        
        public int SupplierID {
            get {
                try {
                    return ((int)(this[this.tableProduct.SupplierIDColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.SupplierIDColumn] = value;
            }
        }
        
        public int CategoryID {
            get {
                try {
                    return ((int)(this[this.tableProduct.CategoryIDColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.CategoryIDColumn] = value;
            }
        }
        
        public string QuantityPerUnit {
            get {
                try {
                    return ((string)(this[this.tableProduct.QuantityPerUnitColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.QuantityPerUnitColumn] = value;
            }
        }
        
        public System.Decimal UnitPrice {
            get {
                try {
                    return ((System.Decimal)(this[this.tableProduct.UnitPriceColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.UnitPriceColumn] = value;
            }
        }
        
        public short UnitsInStock {
            get {
                try {
                    return ((short)(this[this.tableProduct.UnitsInStockColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.UnitsInStockColumn] = value;
            }
        }
        
        public short UnitsOnOrder {
            get {
                try {
                    return ((short)(this[this.tableProduct.UnitsOnOrderColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.UnitsOnOrderColumn] = value;
            }
        }
        
        public short ReorderLevel {
            get {
                try {
                    return ((short)(this[this.tableProduct.ReorderLevelColumn]));
                }
                catch (System.InvalidCastException e) {
                    throw new System.Data.StrongTypingException("StrongTyping_CannotAccessDBNull", e);
                }
            }
            set {
                this[this.tableProduct.ReorderLevelColumn] = value;
            }
        }
        
        public bool Discontinued {
            get {
                return ((bool)(this[this.tableProduct.DiscontinuedColumn]));
            }
            set {
                this[this.tableProduct.DiscontinuedColumn] = value;
            }
        }
        
        public bool IsSupplierIDNull() {
            return this.IsNull(this.tableProduct.SupplierIDColumn);
        }
        
        public void SetSupplierIDNull() {
            this[this.tableProduct.SupplierIDColumn] = System.Convert.DBNull;
        }
        
        public bool IsCategoryIDNull() {
            return this.IsNull(this.tableProduct.CategoryIDColumn);
        }
        
        public void SetCategoryIDNull() {
            this[this.tableProduct.CategoryIDColumn] = System.Convert.DBNull;
        }
        
        public bool IsQuantityPerUnitNull() {
            return this.IsNull(this.tableProduct.QuantityPerUnitColumn);
        }
        
        public void SetQuantityPerUnitNull() {
            this[this.tableProduct.QuantityPerUnitColumn] = System.Convert.DBNull;
        }
        
        public bool IsUnitPriceNull() {
            return this.IsNull(this.tableProduct.UnitPriceColumn);
        }
        
        public void SetUnitPriceNull() {
            this[this.tableProduct.UnitPriceColumn] = System.Convert.DBNull;
        }
        
        public bool IsUnitsInStockNull() {
            return this.IsNull(this.tableProduct.UnitsInStockColumn);
        }
        
        public void SetUnitsInStockNull() {
            this[this.tableProduct.UnitsInStockColumn] = System.Convert.DBNull;
        }
        
        public bool IsUnitsOnOrderNull() {
            return this.IsNull(this.tableProduct.UnitsOnOrderColumn);
        }
        
        public void SetUnitsOnOrderNull() {
            this[this.tableProduct.UnitsOnOrderColumn] = System.Convert.DBNull;
        }
        
        public bool IsReorderLevelNull() {
            return this.IsNull(this.tableProduct.ReorderLevelColumn);
        }
        
        public void SetReorderLevelNull() {
            this[this.tableProduct.ReorderLevelColumn] = System.Convert.DBNull;
        }
    }
    
    [System.Diagnostics.DebuggerStepThrough()]
    public class ProductRowChangeEvent : System.EventArgs {
        
        private ProductRow eventRow;
        
        private System.Data.DataRowAction eventAction;
        
        public ProductRowChangeEvent(ProductRow row, System.Data.DataRowAction action) {
            this.eventRow = row;
            this.eventAction = action;
        }
        
        public ProductRow Row {
            get {
                return this.eventRow;
            }
        }
        
        public System.Data.DataRowAction Action {
            get {
                return this.eventAction;
            }
        }
    }
}