dataset2.vb

vb.net+SQL开发工具 是一个很好的管理系统的源码

            Me.Columns.Add(Me.column是否结帐)
            Me.column结帐日期 = New DataColumn("结帐日期", GetType(System.DateTime), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column结帐日期)
            Me.column付款方式 = New DataColumn("付款方式", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column付款方式)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.column入住单号}, true))
            Me.column入住单号.AllowDBNull = false
            Me.column入住单号.Unique = true
        End Sub
        
        Public Function New入住单Row() As 入住单Row
            Return CType(Me.NewRow,入住单Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New 入住单Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(入住单Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.入住单RowChangedEvent) Is Nothing) Then
                RaiseEvent 入住单RowChanged(Me, New 入住单RowChangeEvent(CType(e.Row,入住单Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.入住单RowChangingEvent) Is Nothing) Then
                RaiseEvent 入住单RowChanging(Me, New 入住单RowChangeEvent(CType(e.Row,入住单Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.入住单RowDeletedEvent) Is Nothing) Then
                RaiseEvent 入住单RowDeleted(Me, New 入住单RowChangeEvent(CType(e.Row,入住单Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.入住单RowDeletingEvent) Is Nothing) Then
                RaiseEvent 入住单RowDeleting(Me, New 入住单RowChangeEvent(CType(e.Row,入住单Row), e.Action))
            End If
        End Sub
        
        Public Sub Remove入住单Row(ByVal row As 入住单Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 入住单Row
        Inherits DataRow
        
        Private table入住单 As 入住单DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.table入住单 = CType(Me.Table,入住单DataTable)
        End Sub
        
        Public Property 入住单号 As String
            Get
                Return CType(Me(Me.table入住单.入住单号Column),String)
            End Get
            Set
                Me(Me.table入住单.入住单号Column) = value
            End Set
        End Property
        
        Public Property 客房类型 As String
            Get
                Try 
                    Return CType(Me(Me.table入住单.客房类型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入住单.客房类型Column) = value
            End Set
        End Property
        
        Public Property 客房编号 As String
            Get
                Try 
                    Return CType(Me(Me.table入住单.客房编号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入住单.客房编号Column) = value
            End Set
        End Property
        
        Public Property 抵店时间 As Date
            Get
                Try 
                    Return CType(Me(Me.table入住单.抵店时间Column),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.table入住单.抵店时间Column) = value
            End Set
        End Property
        
        Public Property 离店时间 As Date
            Get
                Try 
                    Return CType(Me(Me.table入住单.离店时间Column),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.table入住单.离店时间Column) = value
            End Set
        End Property
        
        Public Property 入住价格 As Decimal
            Get
                Try 
                    Return CType(Me(Me.table入住单.入住价格Column),Decimal)
                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入住单.入住价格Column) = value
            End Set
        End Property
        
        Public Property 加床价格 As Decimal
            Get
                Try 
                    Return CType(Me(Me.table入住单.加床价格Column),Decimal)
                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入住单.加床价格Column) = value
            End Set
        End Property
        
        Public Property 预收款 As Decimal
            Get
                Try 
                    Return CType(Me(Me.table入住单.预收款Column),Decimal)
                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入住单.预收款Column) = value
            End Set
        End Property
        
        Public Property 应收帐款 As Decimal
            Get
                Try 
                    Return CType(Me(Me.table入住单.应收帐款Column),Decimal)
                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入住单.应收帐款Column) = value
            End Set
        End Property
        
        Public Property 结帐金额 As Decimal
            Get
                Try 
                    Return CType(Me(Me.table入住单.结帐金额Column),Decimal)
                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入住单.结帐金额Column) = value
            End Set
        End Property
        
        Public Property 是否结帐 As Boolean
            Get
                Try 
                    Return CType(Me(Me.table入住单.是否结帐Column),Boolean)
                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入住单.是否结帐Column) = value
            End Set
        End Property
        
        Public Property 结帐日期 As Date
            Get
                Try 
                    Return CType(Me(Me.table入住单.结帐日期Column),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.table入住单.结帐日期Column) = value
            End Set
        End Property
        
        Public Property 付款方式 As String
            Get
                Try 
                    Return CType(Me(Me.table入住单.付款方式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入住单.付款方式Column) = value
            End Set
        End Property
        
        Public Function Is客房类型Null() As Boolean
            Return Me.IsNull(Me.table入住单.客房类型Column)
        End Function
        
        Public Sub Set客房类型Null()
            Me(Me.table入住单.客房类型Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is客房编号Null() As Boolean
            Return Me.IsNull(Me.table入住单.客房编号Column)
        End Function
        
        Public Sub Set客房编号Null()
            Me(Me.table入住单.客房编号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is抵店时间Null() As Boolean
            Return Me.IsNull(Me.table入住单.抵店时间Column)
        End Function
        
        Public Sub Set抵店时间Null()
            Me(Me.table入住单.抵店时间Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is离店时间Null() As Boolean
            Return Me.IsNull(Me.table入住单.离店时间Column)
        End Function
        
        Public Sub Set离店时间Null()
            Me(Me.table入住单.离店时间Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is入住价格Null() As Boolean
            Return Me.IsNull(Me.table入住单.入住价格Column)
        End Function
        
        Public Sub Set入住价格Null()
            Me(Me.table入住单.入住价格Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is加床价格Null() As Boolean
            Return Me.IsNull(Me.table入住单.加床价格Column)
        End Function
        
        Public Sub Set加床价格Null()
            Me(Me.table入住单.加床价格Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is预收款Null() As Boolean
            Return Me.IsNull(Me.table入住单.预收款Column)
        End Function
        
        Public Sub Set预收款Null()
            Me(Me.table入住单.预收款Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is应收帐款Null() As Boolean
            Return Me.IsNull(Me.table入住单.应收帐款Column)
        End Function
        
        Public Sub Set应收帐款Null()
            Me(Me.table入住单.应收帐款Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is结帐金额Null() As Boolean
            Return Me.IsNull(Me.table入住单.结帐金额Column)
        End Function
        
        Public Sub Set结帐金额Null()
            Me(Me.table入住单.结帐金额Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is是否结帐Null() As Boolean
            Return Me.IsNull(Me.table入住单.是否结帐Column)
        End Function
        
        Public Sub Set是否结帐Null()
            Me(Me.table入住单.是否结帐Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is结帐日期Null() As Boolean
            Return Me.IsNull(Me.table入住单.结帐日期Column)
        End Function
        
        Public Sub Set结帐日期Null()
            Me(Me.table入住单.结帐日期Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is付款方式Null() As Boolean
            Return Me.IsNull(Me.table入住单.付款方式Column)
        End Function
        
        Public Sub Set付款方式Null()
            Me(Me.table入住单.付款方式Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 入住单RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As 入住单Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As 入住单Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As 入住单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