dataset5.vb

首先利用Sql Sever数据库作为后台

            Me.columnIC卡号 = New DataColumn("IC卡号", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnIC卡号)
            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.column日期 = New DataColumn("日期", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column日期)
        End Sub
        
        Public Function New查询项Row() As 查询项Row
            Return CType(Me.NewRow,查询项Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New 查询项Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(查询项Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.查询项RowChangedEvent) Is Nothing) Then
                RaiseEvent 查询项RowChanged(Me, New 查询项RowChangeEvent(CType(e.Row,查询项Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.查询项RowChangingEvent) Is Nothing) Then
                RaiseEvent 查询项RowChanging(Me, New 查询项RowChangeEvent(CType(e.Row,查询项Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.查询项RowDeletedEvent) Is Nothing) Then
                RaiseEvent 查询项RowDeleted(Me, New 查询项RowChangeEvent(CType(e.Row,查询项Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.查询项RowDeletingEvent) Is Nothing) Then
                RaiseEvent 查询项RowDeleting(Me, New 查询项RowChangeEvent(CType(e.Row,查询项Row), e.Action))
            End If
        End Sub
        
        Public Sub Remove查询项Row(ByVal row As 查询项Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 查询项Row
        Inherits DataRow
        
        Private table查询项 As 查询项DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.table查询项 = CType(Me.Table,查询项DataTable)
        End Sub
        
        Public Property IC卡号 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.IC卡号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查询项.IC卡号Column) = value
            End Set
        End Property
        
        Public Property 姓名 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.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查询项.姓名Column) = value
            End Set
        End Property
        
        Public Property 班级 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.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查询项.班级Column) = value
            End Set
        End Property
        
        Public Property 学号 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.学号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查询项.学号Column) = value
            End Set
        End Property
        
        Public Property 上课时间 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.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查询项.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查询项.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查询项.下课时间Column) = value
            End Set
        End Property
        
        Public Property 旷课 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.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查询项.旷课Column) = value
            End Set
        End Property
        
        Public Property 出勤次数 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.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查询项.出勤次数Column) = value
            End Set
        End Property
        
        Public Property 日期 As String
            Get
                Try 
                    Return CType(Me(Me.table查询项.日期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查询项.日期Column) = value
            End Set
        End Property
        
        Public Function IsIC卡号Null() As Boolean
            Return Me.IsNull(Me.table查询项.IC卡号Column)
        End Function
        
        Public Sub SetIC卡号Null()
            Me(Me.table查询项.IC卡号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is姓名Null() As Boolean
            Return Me.IsNull(Me.table查询项.姓名Column)
        End Function
        
        Public Sub Set姓名Null()
            Me(Me.table查询项.姓名Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is班级Null() As Boolean
            Return Me.IsNull(Me.table查询项.班级Column)
        End Function
        
        Public Sub Set班级Null()
            Me(Me.table查询项.班级Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is学号Null() As Boolean
            Return Me.IsNull(Me.table查询项.学号Column)
        End Function
        
        Public Sub Set学号Null()
            Me(Me.table查询项.学号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is上课时间Null() As Boolean
            Return Me.IsNull(Me.table查询项.上课时间Column)
        End Function
        
        Public Sub Set上课时间Null()
            Me(Me.table查询项.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查询项.下课时间Column)
        End Function
        
        Public Sub Set下课时间Null()
            Me(Me.table查询项.下课时间Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is旷课Null() As Boolean
            Return Me.IsNull(Me.table查询项.旷课Column)
        End Function
        
        Public Sub Set旷课Null()
            Me(Me.table查询项.旷课Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is出勤次数Null() As Boolean
            Return Me.IsNull(Me.table查询项.出勤次数Column)
        End Function
        
        Public Sub Set出勤次数Null()
            Me(Me.table查询项.出勤次数Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is日期Null() As Boolean
            Return Me.IsNull(Me.table查询项.日期Column)
        End Function
        
        Public Sub Set日期Null()
            Me(Me.table查询项.日期Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 查询项RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As 查询项Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As 查询项Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As 查询项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