rowPrintRow.ItemArray = New Object() {課程名稱, 開課系別, 教師, 成績, 學號}
            Me.Rows.Add(rowPrintRow)
            Return rowPrintRow
        End Function
        
        Public Function GetEnumerator() As System.Collections.IEnumerator Implements System.Collections.IEnumerable.GetEnumerator
            Return Me.Rows.GetEnumerator
        End Function
        
        Public Overrides Function Clone() As DataTable
            Dim cln As PrintDataTable = CType(MyBase.Clone,PrintDataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New PrintDataTable
        End Function
        
        Friend Sub InitVars()
            Me.column課程名稱 = Me.Columns("課程名稱")
            Me.column開課系別 = Me.Columns("開課系別")
            Me.column教師 = Me.Columns("教師")
            Me.column成績 = Me.Columns("成績")
            Me.column學號 = Me.Columns("學號")
        End Sub
        
        Private Sub InitClass()
            Me.column課程名稱 = New DataColumn("課程名稱", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column課程名稱)
            Me.column開課系別 = New DataColumn("開課系別", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column開課系別)
            Me.column教師 = New DataColumn("教師", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column教師)
            Me.column成績 = New DataColumn("成績", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column成績)
            Me.column學號 = New DataColumn("學號", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column學號)
        End Sub
        
        Public Function NewPrintRow() As PrintRow
            Return CType(Me.NewRow,PrintRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New PrintRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(PrintRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.PrintRowChangedEvent) Is Nothing) Then
                RaiseEvent PrintRowChanged(Me, New PrintRowChangeEvent(CType(e.Row,PrintRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.PrintRowChangingEvent) Is Nothing) Then
                RaiseEvent PrintRowChanging(Me, New PrintRowChangeEvent(CType(e.Row,PrintRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.PrintRowDeletedEvent) Is Nothing) Then
                RaiseEvent PrintRowDeleted(Me, New PrintRowChangeEvent(CType(e.Row,PrintRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.PrintRowDeletingEvent) Is Nothing) Then
                RaiseEvent PrintRowDeleting(Me, New PrintRowChangeEvent(CType(e.Row,PrintRow), e.Action))
            End If
        End Sub
        
        Public Sub RemovePrintRow(ByVal row As PrintRow)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class PrintRow
        Inherits DataRow
        
        Private tablePrint As PrintDataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tablePrint = CType(Me.Table,PrintDataTable)
        End Sub
        
        Public Property 課程名稱 As String
            Get
                Try 
                    Return CType(Me(Me.tablePrint.課程名稱Column),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法獲取值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tablePrint.課程名稱Column) = value
            End Set
        End Property
        
        Public Property 開課系別 As String
            Get
                Try 
                    Return CType(Me(Me.tablePrint.開課系別Column),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法獲取值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tablePrint.開課系別Column) = value
            End Set
        End Property
        
        Public Property 教師 As String
            Get
                Try 
                    Return CType(Me(Me.tablePrint.教師Column),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法獲取值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tablePrint.教師Column) = value
            End Set
        End Property
        
        Public Property 成績 As String
            Get
                Try 
                    Return CType(Me(Me.tablePrint.成績Column),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法獲取值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tablePrint.成績Column) = value
            End Set
        End Property
        
        Public Property 學號 As String
            Get
                Try 
                    Return CType(Me(Me.tablePrint.學號Column),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法獲取值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tablePrint.學號Column) = value
            End Set
        End Property
        
        Public Function Is課程名稱Null() As Boolean
            Return Me.IsNull(Me.tablePrint.課程名稱Column)
        End Function
        
        Public Sub Set課程名稱Null()
            Me(Me.tablePrint.課程名稱Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is開課系別Null() As Boolean
            Return Me.IsNull(Me.tablePrint.開課系別Column)
        End Function
        
        Public Sub Set開課系別Null()
            Me(Me.tablePrint.開課系別Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is教師Null() As Boolean
            Return Me.IsNull(Me.tablePrint.教師Column)
        End Function
        
        Public Sub Set教師Null()
            Me(Me.tablePrint.教師Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is成績Null() As Boolean
            Return Me.IsNull(Me.tablePrint.成績Column)
        End Function
        
        Public Sub Set成績Null()
            Me(Me.tablePrint.成績Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is學號Null() As Boolean
            Return Me.IsNull(Me.tablePrint.學號Column)
        End Function
        
        Public Sub Set學號Null()
            Me(Me.tablePrint.學號Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class PrintRowChangeEvent
        Inherits EventArgs
        
        Private eventRow As PrintRow
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As PrintRow, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As PrintRow
            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