dataset1.cs

C#自定义查询控件

                this.Columns.Add(this.columnHomePhone);
                this.columnExtension = new DataColumn("Extension", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnExtension);
                this.columnPhoto = new DataColumn("Photo", typeof(System.Byte[]), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnPhoto);
                this.columnNotes = new DataColumn("Notes", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnNotes);
                this.columnReportsTo = new DataColumn("ReportsTo", typeof(int), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnReportsTo);
                this.columnPhotoPath = new DataColumn("PhotoPath", typeof(string), null, System.Data.MappingType.Element);
                this.Columns.Add(this.columnPhotoPath);
                this.Constraints.Add(new UniqueConstraint("Constraint1", new DataColumn[] {
                                this.columnEmployeeID}, true));
                this.columnEmployeeID.AutoIncrement = true;
                this.columnEmployeeID.AllowDBNull = false;
                this.columnEmployeeID.ReadOnly = true;
                this.columnEmployeeID.Unique = true;
                this.columnLastName.AllowDBNull = false;
                this.columnFirstName.AllowDBNull = false;
            }
            
            public EmployeesRow NewEmployeesRow() {
                return ((EmployeesRow)(this.NewRow()));
            }
            
            protected override DataRow NewRowFromBuilder(DataRowBuilder builder) {
                return new EmployeesRow(builder);
            }
            
            protected override System.Type GetRowType() {
                return typeof(EmployeesRow);
            }
            
            protected override void OnRowChanged(DataRowChangeEventArgs e) {
                base.OnRowChanged(e);
                if ((this.EmployeesRowChanged != null)) {
                    this.EmployeesRowChanged(this, new EmployeesRowChangeEvent(((EmployeesRow)(e.Row)), e.Action));
                }
            }
            
            protected override void OnRowChanging(DataRowChangeEventArgs e) {
                base.OnRowChanging(e);
                if ((this.EmployeesRowChanging != null)) {
                    this.EmployeesRowChanging(this, new EmployeesRowChangeEvent(((EmployeesRow)(e.Row)), e.Action));
                }
            }
            
            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 LastName {
                get {
                    return ((string)(this[this.tableEmployees.LastNameColumn]));
                }
                set {
                    this[this.tableEmployees.LastNameColumn] = value;
                }
            }
            
            public string FirstName {
                get {
                    return ((string)(this[this.tableEmployees.FirstNameColumn]));
                }
                set {
                    this[this.tableEmployees.FirstNameColumn] = value;
                }
            }
            
            public string Title {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.TitleColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.TitleColumn] = value;
                }
            }
            
            public string TitleOfCourtesy {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.TitleOfCourtesyColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.TitleOfCourtesyColumn] = value;
                }
            }
            
            public System.DateTime BirthDate {
                get {
                    try {
                        return ((System.DateTime)(this[this.tableEmployees.BirthDateColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.BirthDateColumn] = value;
                }
            }
            
            public System.DateTime HireDate {
                get {
                    try {
                        return ((System.DateTime)(this[this.tableEmployees.HireDateColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.HireDateColumn] = value;
                }
            }
            
            public string Address {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.AddressColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.AddressColumn] = value;
                }
            }
            
            public string City {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.CityColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.CityColumn] = value;
                }
            }
            
            public string Region {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.RegionColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.RegionColumn] = value;
                }
            }
            
            public string PostalCode {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.PostalCodeColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.PostalCodeColumn] = value;
                }
            }
            
            public string Country {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.CountryColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.CountryColumn] = value;
                }
            }
            
            public string HomePhone {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.HomePhoneColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.HomePhoneColumn] = value;
                }
            }
            
            public string Extension {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.ExtensionColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.ExtensionColumn] = value;
                }
            }
            
            public System.Byte[] Photo {
                get {
                    try {
                        return ((System.Byte[])(this[this.tableEmployees.PhotoColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.PhotoColumn] = value;
                }
            }
            
            public string Notes {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.NotesColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.NotesColumn] = value;
                }
            }
            
            public int ReportsTo {
                get {
                    try {
                        return ((int)(this[this.tableEmployees.ReportsToColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.ReportsToColumn] = value;
                }
            }
            
            public string PhotoPath {
                get {
                    try {
                        return ((string)(this[this.tableEmployees.PhotoPathColumn]));
                    }
                    catch (InvalidCastException e) {
                        throw new StrongTypingException("Cannot get value because it is DBNull.", e);
                    }
                }
                set {
                    this[this.tableEmployees.PhotoPathColumn] = value;
                }
            }
            
            public bool IsTitleNull() {
                return this.IsNull(this.tableEmployees.TitleColumn);
            }
            
            public void SetTitleNull() {
                this[this.tableEmployees.TitleColumn] = System.Convert.DBNull;
            }
            
            public bool IsTitleOfCourtesyNull() {
                return this.IsNull(this.tableEmployees.TitleOfCourtesyColumn);
            }
            
            public void SetTitleOfCourtesyNull() {
                this[this.tableEmployees.TitleOfCourtesyColumn] = System.Convert.DBNull;
            }
            
            public bool IsBirthDateNull() {
                return this.IsNull(this.tableEmployees.BirthDateColumn);
            }
            
            public void SetBirthDateNull() {
                this[this.tableEmployees.BirthDateColumn] = System.Convert.DBNull;
            }