dataset1.cs

C#自定义查询控件

            
            public bool IsFaxNull() {
                return this.IsNull(this.tableCustomers.FaxColumn);
            }
            
            public void SetFaxNull() {
                this[this.tableCustomers.FaxColumn] = System.Convert.DBNull;
            }
        }
        
        [System.Diagnostics.DebuggerStepThrough()]
        public class CustomersRowChangeEvent : EventArgs {
            
            private CustomersRow eventRow;
            
            private DataRowAction eventAction;
            
            public CustomersRowChangeEvent(CustomersRow row, DataRowAction action) {
                this.eventRow = row;
                this.eventAction = action;
            }
            
            public CustomersRow 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 columnLastName;
            
            private DataColumn columnFirstName;
            
            private DataColumn columnTitle;
            
            private DataColumn columnTitleOfCourtesy;
            
            private DataColumn columnBirthDate;
            
            private DataColumn columnHireDate;
            
            private DataColumn columnAddress;
            
            private DataColumn columnCity;
            
            private DataColumn columnRegion;
            
            private DataColumn columnPostalCode;
            
            private DataColumn columnCountry;
            
            private DataColumn columnHomePhone;
            
            private DataColumn columnExtension;
            
            private DataColumn columnPhoto;
            
            private DataColumn columnNotes;
            
            private DataColumn columnReportsTo;
            
            private DataColumn columnPhotoPath;
            
            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 LastNameColumn {
                get {
                    return this.columnLastName;
                }
            }
            
            internal DataColumn FirstNameColumn {
                get {
                    return this.columnFirstName;
                }
            }
            
            internal DataColumn TitleColumn {
                get {
                    return this.columnTitle;
                }
            }
            
            internal DataColumn TitleOfCourtesyColumn {
                get {
                    return this.columnTitleOfCourtesy;
                }
            }
            
            internal DataColumn BirthDateColumn {
                get {
                    return this.columnBirthDate;
                }
            }
            
            internal DataColumn HireDateColumn {
                get {
                    return this.columnHireDate;
                }
            }
            
            internal DataColumn AddressColumn {
                get {
                    return this.columnAddress;
                }
            }
            
            internal DataColumn CityColumn {
                get {
                    return this.columnCity;
                }
            }
            
            internal DataColumn RegionColumn {
                get {
                    return this.columnRegion;
                }
            }
            
            internal DataColumn PostalCodeColumn {
                get {
                    return this.columnPostalCode;
                }
            }
            
            internal DataColumn CountryColumn {
                get {
                    return this.columnCountry;
                }
            }
            
            internal DataColumn HomePhoneColumn {
                get {
                    return this.columnHomePhone;
                }
            }
            
            internal DataColumn ExtensionColumn {
                get {
                    return this.columnExtension;
                }
            }
            
            internal DataColumn PhotoColumn {
                get {
                    return this.columnPhoto;
                }
            }
            
            internal DataColumn NotesColumn {
                get {
                    return this.columnNotes;
                }
            }
            
            internal DataColumn ReportsToColumn {
                get {
                    return this.columnReportsTo;
                }
            }
            
            internal DataColumn PhotoPathColumn {
                get {
                    return this.columnPhotoPath;
                }
            }
            
            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 LastName, 
                        string FirstName, 
                        string Title, 
                        string TitleOfCourtesy, 
                        System.DateTime BirthDate, 
                        System.DateTime HireDate, 
                        string Address, 
                        string City, 
                        string Region, 
                        string PostalCode, 
                        string Country, 
                        string HomePhone, 
                        string Extension, 
                        System.Byte[] Photo, 
                        string Notes, 
                        int ReportsTo, 
                        string PhotoPath) {
                EmployeesRow rowEmployeesRow = ((EmployeesRow)(this.NewRow()));
                rowEmployeesRow.ItemArray = new object[] {
                        null,
                        LastName,
                        FirstName,
                        Title,
                        TitleOfCourtesy,
                        BirthDate,
                        HireDate,
                        Address,
                        City,
                        Region,
                        PostalCode,
                        Country,
                        HomePhone,
                        Extension,
                        Photo,
                        Notes,
                        ReportsTo,
                        PhotoPath};
                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.columnLastName = this.Columns["LastName"];
                this.columnFirstName = this.Columns["FirstName"];
                this.columnTitle = this.Columns["Title"];
                this.columnTitleOfCourtesy = this.Columns["TitleOfCourtesy"];
                this.columnBirthDate = this.Columns["BirthDate"];
                this.columnHireDate = this.Columns["HireDate"];
                this.columnAddress = this.Columns["Address"];
                this.columnCity = this.Columns["City"];
                this.columnRegion = this.Columns["Region"];
                this.columnPostalCode = this.Columns["PostalCode"];
                this.columnCountry = this.Columns["Country"];
                this.columnHomePhone = this.Columns["HomePhone"];
                this.columnExtension = this.Columns["Extension"];
                this.columnPhoto = this.Columns["Photo"];
                this.columnNotes = this.Columns["Notes"];
                this.columnReportsTo = this.Columns["ReportsTo"];
                this.columnPhotoPath = this.Columns["PhotoPath"];
            }
            
            private void InitClass() {
                this.columnEmployeeID = new DataColumn("EmployeeID", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnEmployeeID);
                this.columnLastName = new DataColumn("LastName", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnLastName);
                this.columnFirstName = new DataColumn("FirstName", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnFirstName);
                this.columnTitle = new DataColumn("Title", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnTitle);
                this.columnTitleOfCourtesy = new DataColumn("TitleOfCourtesy", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnTitleOfCourtesy);
                this.columnBirthDate = new DataColumn("BirthDate", typeof(System.DateTime), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnBirthDate);
                this.columnHireDate = new DataColumn("HireDate", typeof(System.DateTime), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnHireDate);
                this.columnAddress = new DataColumn("Address", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnAddress);
                this.columnCity = new DataColumn("City", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnCity);
                this.columnRegion = new DataColumn("Region", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnRegion);
                this.columnPostalCode = new DataColumn("PostalCode", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnPostalCode);
                this.columnCountry = new DataColumn("Country", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnCountry);
                this.columnHomePhone = new DataColumn("HomePhone", typeof(string), null, System.Data.MappingType.Element);