dataset1.vb

Visual Basic .NET程序设计教程源代码

            Me.Columns.Add(Me.columnaddress)
            Me.columnbirth = New DataColumn("birth", GetType(System.DateTime), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnbirth)
            Me.columnbp = New DataColumn("bp", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnbp)
            Me.columndemo = New DataColumn("demo", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columndemo)
            Me.columnemail = New DataColumn("email", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnemail)
            Me.columnid = New DataColumn("id", GetType(System.Int32), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnid)
            Me.columnmobile = New DataColumn("mobile", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnmobile)
            Me.columnname = New DataColumn("name", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnname)
            Me.columnpc = New DataColumn("pc", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnpc)
            Me.columnphone = New DataColumn("phone", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnphone)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.columnid}, true))
            Me.columnid.AutoIncrement = true
            Me.columnid.AllowDBNull = false
            Me.columnid.Unique = true
        End Sub
        
        Public Function NewdetailRow() As detailRow
            Return CType(Me.NewRow,detailRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New detailRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(detailRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.detailRowChangedEvent) Is Nothing) Then
                RaiseEvent detailRowChanged(Me, New detailRowChangeEvent(CType(e.Row,detailRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.detailRowChangingEvent) Is Nothing) Then
                RaiseEvent detailRowChanging(Me, New detailRowChangeEvent(CType(e.Row,detailRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.detailRowDeletedEvent) Is Nothing) Then
                RaiseEvent detailRowDeleted(Me, New detailRowChangeEvent(CType(e.Row,detailRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.detailRowDeletingEvent) Is Nothing) Then
                RaiseEvent detailRowDeleting(Me, New detailRowChangeEvent(CType(e.Row,detailRow), e.Action))
            End If
        End Sub
        
        Public Sub RemovedetailRow(ByVal row As detailRow)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class detailRow
        Inherits DataRow
        
        Private tabledetail As detailDataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tabledetail = CType(Me.Table,detailDataTable)
        End Sub
        
        Public Property address As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.addressColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.addressColumn) = value
            End Set
        End Property
        
        Public Property birth As Date
            Get
                Try 
                    Return CType(Me(Me.tabledetail.birthColumn),Date)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.birthColumn) = value
            End Set
        End Property
        
        Public Property bp As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.bpColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.bpColumn) = value
            End Set
        End Property
        
        Public Property demo As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.demoColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.demoColumn) = value
            End Set
        End Property
        
        Public Property email As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.emailColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.emailColumn) = value
            End Set
        End Property
        
        Public Property id As Integer
            Get
                Return CType(Me(Me.tabledetail.idColumn),Integer)
            End Get
            Set
                Me(Me.tabledetail.idColumn) = value
            End Set
        End Property
        
        Public Property mobile As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.mobileColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.mobileColumn) = value
            End Set
        End Property
        
        Public Property name As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.nameColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.nameColumn) = value
            End Set
        End Property
        
        Public Property pc As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.pcColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.pcColumn) = value
            End Set
        End Property
        
        Public Property phone As String
            Get
                Try 
                    Return CType(Me(Me.tabledetail.phoneColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tabledetail.phoneColumn) = value
            End Set
        End Property
        
        Public Function IsaddressNull() As Boolean
            Return Me.IsNull(Me.tabledetail.addressColumn)
        End Function
        
        Public Sub SetaddressNull()
            Me(Me.tabledetail.addressColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsbirthNull() As Boolean
            Return Me.IsNull(Me.tabledetail.birthColumn)
        End Function
        
        Public Sub SetbirthNull()
            Me(Me.tabledetail.birthColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsbpNull() As Boolean
            Return Me.IsNull(Me.tabledetail.bpColumn)
        End Function
        
        Public Sub SetbpNull()
            Me(Me.tabledetail.bpColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsdemoNull() As Boolean
            Return Me.IsNull(Me.tabledetail.demoColumn)
        End Function
        
        Public Sub SetdemoNull()
            Me(Me.tabledetail.demoColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsemailNull() As Boolean
            Return Me.IsNull(Me.tabledetail.emailColumn)
        End Function
        
        Public Sub SetemailNull()
            Me(Me.tabledetail.emailColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsmobileNull() As Boolean
            Return Me.IsNull(Me.tabledetail.mobileColumn)
        End Function
        
        Public Sub SetmobileNull()
            Me(Me.tabledetail.mobileColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsnameNull() As Boolean
            Return Me.IsNull(Me.tabledetail.nameColumn)
        End Function
        
        Public Sub SetnameNull()
            Me(Me.tabledetail.nameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IspcNull() As Boolean
            Return Me.IsNull(Me.tabledetail.pcColumn)
        End Function
        
        Public Sub SetpcNull()
            Me(Me.tabledetail.pcColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsphoneNull() As Boolean
            Return Me.IsNull(Me.tabledetail.phoneColumn)
        End Function
        
        Public Sub SetphoneNull()
            Me(Me.tabledetail.phoneColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class detailRowChangeEvent
        Inherits EventArgs
        
        Private eventRow As detailRow
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As detailRow, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As detailRow
            Get
                Return Me.eventRow
            End Get
        End Property
        
        Public ReadOnly Property Action As DataRowAction
            Get
                Return Me.eventAction
            End Get
        End Property
    End Class
End Class