datasetquery.cs

visualc#+sql图书出租管理系统

                    return ((BookRow)(this.Rows[index]));
                }
            }
            
            public event BookRowChangeEventHandler BookRowChanged;
            
            public event BookRowChangeEventHandler BookRowChanging;
            
            public event BookRowChangeEventHandler BookRowDeleted;
            
            public event BookRowChangeEventHandler BookRowDeleting;
            
            public void AddBookRow(BookRow row) {
                this.Rows.Add(row);
            }
            
            public BookRow AddBookRow(string BookID, string BookName, string BookWriter, string BookPublish, System.DateTime BookPublishDate, System.Double BookPrice, string BookSort, int BookAmount, int BookRemain) {
                BookRow rowBookRow = ((BookRow)(this.NewRow()));
                rowBookRow.ItemArray = new object[] {
                        BookID,
                        BookName,
                        BookWriter,
                        BookPublish,
                        BookPublishDate,
                        BookPrice,
                        BookSort,
                        BookAmount,
                        BookRemain};
                this.Rows.Add(rowBookRow);
                return rowBookRow;
            }
            
            public BookRow FindByBookID(string BookID) {
                return ((BookRow)(this.Rows.Find(new object[] {
                            BookID})));
            }
            
            public System.Collections.IEnumerator GetEnumerator() {
                return this.Rows.GetEnumerator();
            }
            
            public override DataTable Clone() {
                BookDataTable cln = ((BookDataTable)(base.Clone()));
                cln.InitVars();
                return cln;
            }
            
            protected override DataTable CreateInstance() {
                return new BookDataTable();
            }
            
            internal void InitVars() {
                this.columnBookID = this.Columns["BookID"];
                this.columnBookName = this.Columns["BookName"];
                this.columnBookWriter = this.Columns["BookWriter"];
                this.columnBookPublish = this.Columns["BookPublish"];
                this.columnBookPublishDate = this.Columns["BookPublishDate"];
                this.columnBookPrice = this.Columns["BookPrice"];
                this.columnBookSort = this.Columns["BookSort"];
                this.columnBookAmount = this.Columns["BookAmount"];
                this.columnBookRemain = this.Columns["BookRemain"];
            }
            
            private void InitClass() {
                this.columnBookID = new DataColumn("BookID", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookID);
                this.columnBookName = new DataColumn("BookName", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookName);
                this.columnBookWriter = new DataColumn("BookWriter", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookWriter);
                this.columnBookPublish = new DataColumn("BookPublish", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookPublish);
                this.columnBookPublishDate = new DataColumn("BookPublishDate", typeof(System.DateTime), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookPublishDate);
                this.columnBookPrice = new DataColumn("BookPrice", typeof(System.Double), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookPrice);
                this.columnBookSort = new DataColumn("BookSort", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookSort);
                this.columnBookAmount = new DataColumn("BookAmount", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookAmount);
                this.columnBookRemain = new DataColumn("BookRemain", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBookRemain);
                this.Constraints.Add(new UniqueConstraint("Constraint1", new DataColumn[] {
                                this.columnBookID}, true));
                this.columnBookID.AllowDBNull = false;
                this.columnBookID.Unique = true;
            }
            
            public BookRow NewBookRow() {
                return ((BookRow)(this.NewRow()));
            }
            
            protected override DataRow NewRowFromBuilder(DataRowBuilder builder) {
                return new BookRow(builder);
            }
            
            protected override System.Type GetRowType() {
                return typeof(BookRow);
            }
            
            protected override void OnRowChanged(DataRowChangeEventArgs e) {
                base.OnRowChanged(e);
                if ((this.BookRowChanged != null)) {
                    this.BookRowChanged(this, new BookRowChangeEvent(((BookRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowChanging(DataRowChangeEventArgs e) {
                base.OnRowChanging(e);
                if ((this.BookRowChanging != null)) {
                    this.BookRowChanging(this, new BookRowChangeEvent(((BookRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleted(DataRowChangeEventArgs e) {
                base.OnRowDeleted(e);
                if ((this.BookRowDeleted != null)) {
                    this.BookRowDeleted(this, new BookRowChangeEvent(((BookRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowDeleting(DataRowChangeEventArgs e) {
                base.OnRowDeleting(e);
                if ((this.BookRowDeleting != null)) {
                    this.BookRowDeleting(this, new BookRowChangeEvent(((BookRow)(e.Row)), e.Action));
                }
            }
            
            public void RemoveBookRow(BookRow row) {
                this.Rows.Remove(row);
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class BookRow : DataRow {
            
            private BookDataTable tableBook;
            
            internal BookRow(DataRowBuilder rb) : 
                    base(rb) {
                this.tableBook = ((BookDataTable)(this.Table));
            }
            
            public string BookID {
                get {
                    return ((string)(this[this.tableBook.BookIDColumn]));
                }
                set {
                    this[this.tableBook.BookIDColumn] = value;
                }
            }
            
            public string BookName {
                get {
                    try {
                        return ((string)(this[this.tableBook.BookNameColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookNameColumn] = value;
                }
            }
            
            public string BookWriter {
                get {
                    try {
                        return ((string)(this[this.tableBook.BookWriterColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookWriterColumn] = value;
                }
            }
            
            public string BookPublish {
                get {
                    try {
                        return ((string)(this[this.tableBook.BookPublishColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookPublishColumn] = value;
                }
            }
            
            public System.DateTime BookPublishDate {
                get {
                    try {
                        return ((System.DateTime)(this[this.tableBook.BookPublishDateColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookPublishDateColumn] = value;
                }
            }
            
            public System.Double BookPrice {
                get {
                    try {
                        return ((System.Double)(this[this.tableBook.BookPriceColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookPriceColumn] = value;
                }
            }
            
            public string BookSort {
                get {
                    try {
                        return ((string)(this[this.tableBook.BookSortColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookSortColumn] = value;
                }
            }
            
            public int BookAmount {
                get {
                    try {
                        return ((int)(this[this.tableBook.BookAmountColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookAmountColumn] = value;
                }
            }
            
            public int BookRemain {
                get {
                    try {
                        return ((int)(this[this.tableBook.BookRemainColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("无法获取值，因为它是 DBNull。", e);
                    }
                }
                set {
                    this[this.tableBook.BookRemainColumn] = value;
                }
            }
            
            public bool IsBookNameNull() {
                return this.IsNull(this.tableBook.BookNameColumn);
            }
            
            public void SetBookNameNull() {
                this[this.tableBook.BookNameColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookWriterNull() {
                return this.IsNull(this.tableBook.BookWriterColumn);
            }
            
            public void SetBookWriterNull() {
                this[this.tableBook.BookWriterColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookPublishNull() {
                return this.IsNull(this.tableBook.BookPublishColumn);
            }
            
            public void SetBookPublishNull() {
                this[this.tableBook.BookPublishColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookPublishDateNull() {
                return this.IsNull(this.tableBook.BookPublishDateColumn);
            }
            
            public void SetBookPublishDateNull() {
                this[this.tableBook.BookPublishDateColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookPriceNull() {
                return this.IsNull(this.tableBook.BookPriceColumn);
            }
            
            public void SetBookPriceNull() {
                this[this.tableBook.BookPriceColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookSortNull() {
                return this.IsNull(this.tableBook.BookSortColumn);
            }
            
            public void SetBookSortNull() {
                this[this.tableBook.BookSortColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookAmountNull() {
                return this.IsNull(this.tableBook.BookAmountColumn);
            }
            
            public void SetBookAmountNull() {
                this[this.tableBook.BookAmountColumn] = System.Convert.DBNull;
            }
            
            public bool IsBookRemainNull() {
                return this.IsNull(this.tableBook.BookRemainColumn);
            }