dspersoninfo.vb

ASP.NET+sql开发的图书管理系统

            Dim cln As ReadDataTable = CType(MyBase.Clone,ReadDataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New ReadDataTable
        End Function
        
        Friend Sub InitVars()
            Me.columncReadID = Me.Columns("cReadID")
            Me.columncReadName = Me.Columns("cReadName")
            Me.columnSex = Me.Columns("Sex")
            Me.columncDepartmentName = Me.Columns("cDepartmentName")
            Me.columncReadTypeName = Me.Columns("cReadTypeName")
            Me.columnsiBorrowNumber = Me.Columns("siBorrowNumber")
            Me.columnsiBorrowDays = Me.Columns("siBorrowDays")
        End Sub
        
        Private Sub InitClass()
            Me.columncReadID = New DataColumn("cReadID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columncReadID)
            Me.columncReadName = New DataColumn("cReadName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columncReadName)
            Me.columnSex = New DataColumn("Sex", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnSex)
            Me.columncDepartmentName = New DataColumn("cDepartmentName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columncDepartmentName)
            Me.columncReadTypeName = New DataColumn("cReadTypeName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columncReadTypeName)
            Me.columnsiBorrowNumber = New DataColumn("siBorrowNumber", GetType(System.Int16), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnsiBorrowNumber)
            Me.columnsiBorrowDays = New DataColumn("siBorrowDays", GetType(System.Int16), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnsiBorrowDays)
            Me.columncReadID.AllowDBNull = false
        End Sub
        
        Public Function NewReadRow() As ReadRow
            Return CType(Me.NewRow,ReadRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New ReadRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(ReadRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.ReadRowChangedEvent) Is Nothing) Then
                RaiseEvent ReadRowChanged(Me, New ReadRowChangeEvent(CType(e.Row,ReadRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.ReadRowChangingEvent) Is Nothing) Then
                RaiseEvent ReadRowChanging(Me, New ReadRowChangeEvent(CType(e.Row,ReadRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.ReadRowDeletedEvent) Is Nothing) Then
                RaiseEvent ReadRowDeleted(Me, New ReadRowChangeEvent(CType(e.Row,ReadRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.ReadRowDeletingEvent) Is Nothing) Then
                RaiseEvent ReadRowDeleting(Me, New ReadRowChangeEvent(CType(e.Row,ReadRow), e.Action))
            End If
        End Sub
        
        Public Sub RemoveReadRow(ByVal row As ReadRow)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class ReadRow
        Inherits DataRow
        
        Private tableRead As ReadDataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tableRead = CType(Me.Table,ReadDataTable)
        End Sub
        
        Public Property cReadID As String
            Get
                Return CType(Me(Me.tableRead.cReadIDColumn),String)
            End Get
            Set
                Me(Me.tableRead.cReadIDColumn) = value
            End Set
        End Property
        
        Public Property cReadName As String
            Get
                Try 
                    Return CType(Me(Me.tableRead.cReadNameColumn),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.tableRead.cReadNameColumn) = value
            End Set
        End Property
        
        Public Property Sex As String
            Get
                Try 
                    Return CType(Me(Me.tableRead.SexColumn),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.tableRead.SexColumn) = value
            End Set
        End Property
        
        Public Property cDepartmentName As String
            Get
                Try 
                    Return CType(Me(Me.tableRead.cDepartmentNameColumn),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.tableRead.cDepartmentNameColumn) = value
            End Set
        End Property
        
        Public Property cReadTypeName As String
            Get
                Try 
                    Return CType(Me(Me.tableRead.cReadTypeNameColumn),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.tableRead.cReadTypeNameColumn) = value
            End Set
        End Property
        
        Public Property siBorrowNumber As Short
            Get
                Try 
                    Return CType(Me(Me.tableRead.siBorrowNumberColumn),Short)
                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.tableRead.siBorrowNumberColumn) = value
            End Set
        End Property
        
        Public Property siBorrowDays As Short
            Get
                Try 
                    Return CType(Me(Me.tableRead.siBorrowDaysColumn),Short)
                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.tableRead.siBorrowDaysColumn) = value
            End Set
        End Property
        
        Public Function IscReadNameNull() As Boolean
            Return Me.IsNull(Me.tableRead.cReadNameColumn)
        End Function
        
        Public Sub SetcReadNameNull()
            Me(Me.tableRead.cReadNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsSexNull() As Boolean
            Return Me.IsNull(Me.tableRead.SexColumn)
        End Function
        
        Public Sub SetSexNull()
            Me(Me.tableRead.SexColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IscDepartmentNameNull() As Boolean
            Return Me.IsNull(Me.tableRead.cDepartmentNameColumn)
        End Function
        
        Public Sub SetcDepartmentNameNull()
            Me(Me.tableRead.cDepartmentNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IscReadTypeNameNull() As Boolean
            Return Me.IsNull(Me.tableRead.cReadTypeNameColumn)
        End Function
        
        Public Sub SetcReadTypeNameNull()
            Me(Me.tableRead.cReadTypeNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IssiBorrowNumberNull() As Boolean
            Return Me.IsNull(Me.tableRead.siBorrowNumberColumn)
        End Function
        
        Public Sub SetsiBorrowNumberNull()
            Me(Me.tableRead.siBorrowNumberColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IssiBorrowDaysNull() As Boolean
            Return Me.IsNull(Me.tableRead.siBorrowDaysColumn)
        End Function
        
        Public Sub SetsiBorrowDaysNull()
            Me(Me.tableRead.siBorrowDaysColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class ReadRowChangeEvent
        Inherits EventArgs
        
        Private eventRow As ReadRow
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As ReadRow, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As ReadRow
            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