dataset2.vb

首先利用Sql Sever数据库作为后台

        Public Overrides Function Clone() As DataTable
            Dim cln As 学生考勤信息表DataTable = CType(MyBase.Clone,学生考勤信息表DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New 学生考勤信息表DataTable
        End Function
        
        Friend Sub InitVars()
            Me.column班级 = Me.Columns("班级")
            Me.column学号 = Me.Columns("学号")
            Me.column姓名 = Me.Columns("姓名")
            Me.column上课时间 = Me.Columns("上课时间")
            Me.column下课时间 = Me.Columns("下课时间")
            Me.column旷课 = Me.Columns("旷课")
            Me.column出勤次数 = Me.Columns("出勤次数")
        End Sub
        
        Private Sub InitClass()
            Me.column班级 = New DataColumn("班级", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column班级)
            Me.column学号 = New DataColumn("学号", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column学号)
            Me.column姓名 = New DataColumn("姓名", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column姓名)
            Me.column上课时间 = New DataColumn("上课时间", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column上课时间)
            Me.column下课时间 = New DataColumn("下课时间", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column下课时间)
            Me.column旷课 = New DataColumn("旷课", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column旷课)
            Me.column出勤次数 = New DataColumn("出勤次数", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column出勤次数)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.column学号}, true))
            Me.column学号.AllowDBNull = false
            Me.column学号.Unique = true
        End Sub
        
        Public Function New学生考勤信息表Row() As 学生考勤信息表Row
            Return CType(Me.NewRow,学生考勤信息表Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New 学生考勤信息表Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(学生考勤信息表Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.学生考勤信息表RowChangedEvent) Is Nothing) Then
                RaiseEvent 学生考勤信息表RowChanged(Me, New 学生考勤信息表RowChangeEvent(CType(e.Row,学生考勤信息表Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.学生考勤信息表RowChangingEvent) Is Nothing) Then
                RaiseEvent 学生考勤信息表RowChanging(Me, New 学生考勤信息表RowChangeEvent(CType(e.Row,学生考勤信息表Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.学生考勤信息表RowDeletedEvent) Is Nothing) Then
                RaiseEvent 学生考勤信息表RowDeleted(Me, New 学生考勤信息表RowChangeEvent(CType(e.Row,学生考勤信息表Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.学生考勤信息表RowDeletingEvent) Is Nothing) Then
                RaiseEvent 学生考勤信息表RowDeleting(Me, New 学生考勤信息表RowChangeEvent(CType(e.Row,学生考勤信息表Row), e.Action))
            End If
        End Sub
        
        Public Sub Remove学生考勤信息表Row(ByVal row As 学生考勤信息表Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 学生考勤信息表Row
        Inherits DataRow
        
        Private table学生考勤信息表 As 学生考勤信息表DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.table学生考勤信息表 = CType(Me.Table,学生考勤信息表DataTable)
        End Sub
        
        Public Property 班级 As String
            Get
                Try 
                    Return CType(Me(Me.table学生考勤信息表.班级Column),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.table学生考勤信息表.班级Column) = value
            End Set
        End Property
        
        Public Property 学号 As String
            Get
                Return CType(Me(Me.table学生考勤信息表.学号Column),String)
            End Get
            Set
                Me(Me.table学生考勤信息表.学号Column) = value
            End Set
        End Property
        
        Public Property 姓名 As String
            Get
                Try 
                    Return CType(Me(Me.table学生考勤信息表.姓名Column),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.table学生考勤信息表.姓名Column) = value
            End Set
        End Property
        
        Public Property 上课时间 As String
            Get
                Try 
                    Return CType(Me(Me.table学生考勤信息表.上课时间Column),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.table学生考勤信息表.上课时间Column) = value
            End Set
        End Property
        
        Public Property 下课时间 As String
            Get
                Try 
                    Return CType(Me(Me.table学生考勤信息表.下课时间Column),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.table学生考勤信息表.下课时间Column) = value
            End Set
        End Property
        
        Public Property 旷课 As String
            Get
                Try 
                    Return CType(Me(Me.table学生考勤信息表.旷课Column),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.table学生考勤信息表.旷课Column) = value
            End Set
        End Property
        
        Public Property 出勤次数 As String
            Get
                Try 
                    Return CType(Me(Me.table学生考勤信息表.出勤次数Column),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.table学生考勤信息表.出勤次数Column) = value
            End Set
        End Property
        
        Public Function Is班级Null() As Boolean
            Return Me.IsNull(Me.table学生考勤信息表.班级Column)
        End Function
        
        Public Sub Set班级Null()
            Me(Me.table学生考勤信息表.班级Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is姓名Null() As Boolean
            Return Me.IsNull(Me.table学生考勤信息表.姓名Column)
        End Function
        
        Public Sub Set姓名Null()
            Me(Me.table学生考勤信息表.姓名Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is上课时间Null() As Boolean
            Return Me.IsNull(Me.table学生考勤信息表.上课时间Column)
        End Function
        
        Public Sub Set上课时间Null()
            Me(Me.table学生考勤信息表.上课时间Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is下课时间Null() As Boolean
            Return Me.IsNull(Me.table学生考勤信息表.下课时间Column)
        End Function
        
        Public Sub Set下课时间Null()
            Me(Me.table学生考勤信息表.下课时间Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is旷课Null() As Boolean
            Return Me.IsNull(Me.table学生考勤信息表.旷课Column)
        End Function
        
        Public Sub Set旷课Null()
            Me(Me.table学生考勤信息表.旷课Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is出勤次数Null() As Boolean
            Return Me.IsNull(Me.table学生考勤信息表.出勤次数Column)
        End Function
        
        Public Sub Set出勤次数Null()
            Me(Me.table学生考勤信息表.出勤次数Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 学生考勤信息表RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As 学生考勤信息表Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As 学生考勤信息表Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As 学生考勤信息表Row
            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