dspr230.vb

通用进销存-visual basic编写

        
        Public Event PR230RowChanging As PR230RowChangeEventHandler
        
        Public Event PR230RowDeleted As PR230RowChangeEventHandler
        
        Public Event PR230RowDeleting As PR230RowChangeEventHandler
        
        Public Overloads Sub AddPR230Row(ByVal row As PR230Row)
            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function AddPR230Row(ByVal Seq As Long, ByVal SupplierID As String, ByVal SupplierAttribName As String, ByVal PurchaseQuantity As Decimal, ByVal PurchaseAmount As Decimal) As PR230Row
            Dim rowPR230Row As PR230Row = CType(Me.NewRow,PR230Row)
            rowPR230Row.ItemArray = New Object() {Seq, SupplierID, SupplierAttribName, PurchaseQuantity, PurchaseAmount}
            Me.Rows.Add(rowPR230Row)
            Return rowPR230Row
        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 PR230DataTable = CType(MyBase.Clone,PR230DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Friend Sub InitVars()
            Me.columnSeq = Me.Columns("Seq")
            Me.columnSupplierID = Me.Columns("SupplierID")
            Me.columnSupplierAttribName = Me.Columns("SupplierAttribName")
            Me.columnPurchaseQuantity = Me.Columns("PurchaseQuantity")
            Me.columnPurchaseAmount = Me.Columns("PurchaseAmount")
        End Sub
        
        Private Sub InitClass()
            Me.columnSeq = New DataColumn("Seq", GetType(System.Int64), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnSeq)
            Me.columnSupplierID = New DataColumn("SupplierID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnSupplierID)
            Me.columnSupplierAttribName = New DataColumn("SupplierAttribName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnSupplierAttribName)
            Me.columnPurchaseQuantity = New DataColumn("PurchaseQuantity", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPurchaseQuantity)
            Me.columnPurchaseAmount = New DataColumn("PurchaseAmount", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPurchaseAmount)
            Me.Constraints.Add(New UniqueConstraint("dsPR230Key1", New DataColumn() {Me.columnSeq, Me.columnSupplierID}, false))
            Me.columnSeq.AllowDBNull = false
            Me.columnSupplierID.AllowDBNull = false
        End Sub
        
        Public Function NewPR230Row() As PR230Row
            Return CType(Me.NewRow,PR230Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New PR230Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(PR230Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.PR230RowChangedEvent) Is Nothing) Then
                RaiseEvent PR230RowChanged(Me, New PR230RowChangeEvent(CType(e.Row,PR230Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.PR230RowChangingEvent) Is Nothing) Then
                RaiseEvent PR230RowChanging(Me, New PR230RowChangeEvent(CType(e.Row,PR230Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.PR230RowDeletedEvent) Is Nothing) Then
                RaiseEvent PR230RowDeleted(Me, New PR230RowChangeEvent(CType(e.Row,PR230Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.PR230RowDeletingEvent) Is Nothing) Then
                RaiseEvent PR230RowDeleting(Me, New PR230RowChangeEvent(CType(e.Row,PR230Row), e.Action))
            End If
        End Sub
        
        Public Sub RemovePR230Row(ByVal row As PR230Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class PR230Row
        Inherits DataRow
        
        Private tablePR230 As PR230DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tablePR230 = CType(Me.Table,PR230DataTable)
        End Sub
        
        Public Property Seq As Long
            Get
                Return CType(Me(Me.tablePR230.SeqColumn),Long)
            End Get
            Set
                Me(Me.tablePR230.SeqColumn) = value
            End Set
        End Property
        
        Public Property SupplierID As String
            Get
                Return CType(Me(Me.tablePR230.SupplierIDColumn),String)
            End Get
            Set
                Me(Me.tablePR230.SupplierIDColumn) = value
            End Set
        End Property
        
        Public Property SupplierAttribName As String
            Get
                Try 
                    Return CType(Me(Me.tablePR230.SupplierAttribNameColumn),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.tablePR230.SupplierAttribNameColumn) = value
            End Set
        End Property
        
        Public Property PurchaseQuantity As Decimal
            Get
                Try 
                    Return CType(Me(Me.tablePR230.PurchaseQuantityColumn),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.tablePR230.PurchaseQuantityColumn) = value
            End Set
        End Property
        
        Public Property PurchaseAmount As Decimal
            Get
                Try 
                    Return CType(Me(Me.tablePR230.PurchaseAmountColumn),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.tablePR230.PurchaseAmountColumn) = value
            End Set
        End Property
        
        Public Function IsSupplierAttribNameNull() As Boolean
            Return Me.IsNull(Me.tablePR230.SupplierAttribNameColumn)
        End Function
        
        Public Sub SetSupplierAttribNameNull()
            Me(Me.tablePR230.SupplierAttribNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsPurchaseQuantityNull() As Boolean
            Return Me.IsNull(Me.tablePR230.PurchaseQuantityColumn)
        End Function
        
        Public Sub SetPurchaseQuantityNull()
            Me(Me.tablePR230.PurchaseQuantityColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsPurchaseAmountNull() As Boolean
            Return Me.IsNull(Me.tablePR230.PurchaseAmountColumn)
        End Function
        
        Public Sub SetPurchaseAmountNull()
            Me(Me.tablePR230.PurchaseAmountColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class PR230RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As PR230Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As PR230Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As PR230Row
            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