dsar280.vb

通用进销存-visual basic编写

        Public Overloads Function AddAR280Row(ByVal CustomerID As String, ByVal CustomerAttribName As String, ByVal CreditLine As Decimal, ByVal CreditBalance As Decimal, ByVal OverCredit As Decimal) As AR280Row
            Dim rowAR280Row As AR280Row = CType(Me.NewRow,AR280Row)
            rowAR280Row.ItemArray = New Object() {CustomerID, CustomerAttribName, CreditLine, CreditBalance, OverCredit}
            Me.Rows.Add(rowAR280Row)
            Return rowAR280Row
        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 AR280DataTable = CType(MyBase.Clone,AR280DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Friend Sub InitVars()
            Me.columnCustomerID = Me.Columns("CustomerID")
            Me.columnCustomerAttribName = Me.Columns("CustomerAttribName")
            Me.columnCreditLine = Me.Columns("CreditLine")
            Me.columnCreditBalance = Me.Columns("CreditBalance")
            Me.columnOverCredit = Me.Columns("OverCredit")
        End Sub
        
        Private Sub InitClass()
            Me.columnCustomerID = New DataColumn("CustomerID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnCustomerID)
            Me.columnCustomerAttribName = New DataColumn("CustomerAttribName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnCustomerAttribName)
            Me.columnCreditLine = New DataColumn("CreditLine", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnCreditLine)
            Me.columnCreditBalance = New DataColumn("CreditBalance", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnCreditBalance)
            Me.columnOverCredit = New DataColumn("OverCredit", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnOverCredit)
        End Sub
        
        Public Function NewAR280Row() As AR280Row
            Return CType(Me.NewRow,AR280Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New AR280Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(AR280Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.AR280RowChangedEvent) Is Nothing) Then
                RaiseEvent AR280RowChanged(Me, New AR280RowChangeEvent(CType(e.Row,AR280Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.AR280RowChangingEvent) Is Nothing) Then
                RaiseEvent AR280RowChanging(Me, New AR280RowChangeEvent(CType(e.Row,AR280Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.AR280RowDeletedEvent) Is Nothing) Then
                RaiseEvent AR280RowDeleted(Me, New AR280RowChangeEvent(CType(e.Row,AR280Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.AR280RowDeletingEvent) Is Nothing) Then
                RaiseEvent AR280RowDeleting(Me, New AR280RowChangeEvent(CType(e.Row,AR280Row), e.Action))
            End If
        End Sub
        
        Public Sub RemoveAR280Row(ByVal row As AR280Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class AR280Row
        Inherits DataRow
        
        Private tableAR280 As AR280DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tableAR280 = CType(Me.Table,AR280DataTable)
        End Sub
        
        Public Property CustomerID As String
            Get
                Try 
                    Return CType(Me(Me.tableAR280.CustomerIDColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法取得值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tableAR280.CustomerIDColumn) = value
            End Set
        End Property
        
        Public Property CustomerAttribName As String
            Get
                Try 
                    Return CType(Me(Me.tableAR280.CustomerAttribNameColumn),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法取得值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tableAR280.CustomerAttribNameColumn) = value
            End Set
        End Property
        
        Public Property CreditLine As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableAR280.CreditLineColumn),Decimal)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法取得值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tableAR280.CreditLineColumn) = value
            End Set
        End Property
        
        Public Property CreditBalance As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableAR280.CreditBalanceColumn),Decimal)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法取得值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tableAR280.CreditBalanceColumn) = value
            End Set
        End Property
        
        Public Property OverCredit As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableAR280.OverCreditColumn),Decimal)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法取得值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tableAR280.OverCreditColumn) = value
            End Set
        End Property
        
        Public Function IsCustomerIDNull() As Boolean
            Return Me.IsNull(Me.tableAR280.CustomerIDColumn)
        End Function
        
        Public Sub SetCustomerIDNull()
            Me(Me.tableAR280.CustomerIDColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsCustomerAttribNameNull() As Boolean
            Return Me.IsNull(Me.tableAR280.CustomerAttribNameColumn)
        End Function
        
        Public Sub SetCustomerAttribNameNull()
            Me(Me.tableAR280.CustomerAttribNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsCreditLineNull() As Boolean
            Return Me.IsNull(Me.tableAR280.CreditLineColumn)
        End Function
        
        Public Sub SetCreditLineNull()
            Me(Me.tableAR280.CreditLineColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsCreditBalanceNull() As Boolean
            Return Me.IsNull(Me.tableAR280.CreditBalanceColumn)
        End Function
        
        Public Sub SetCreditBalanceNull()
            Me(Me.tableAR280.CreditBalanceColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsOverCreditNull() As Boolean
            Return Me.IsNull(Me.tableAR280.OverCreditColumn)
        End Function
        
        Public Sub SetOverCreditNull()
            Me(Me.tableAR280.OverCreditColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class AR280RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As AR280Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As AR280Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As AR280Row
            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