dsin220.vb

通用进销存-visual basic编写

            rowIN220Row.ItemArray = New Object() {ProductID, TransferDate, ChangeKind, ChangeDescription, TransferID, Quantity, Amount, ProductName}
            Me.Rows.Add(rowIN220Row)
            Return rowIN220Row
        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 IN220DataTable = CType(MyBase.Clone,IN220DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Friend Sub InitVars()
            Me.columnProductID = Me.Columns("ProductID")
            Me.columnTransferDate = Me.Columns("TransferDate")
            Me.columnChangeKind = Me.Columns("ChangeKind")
            Me.columnChangeDescription = Me.Columns("ChangeDescription")
            Me.columnTransferID = Me.Columns("TransferID")
            Me.columnQuantity = Me.Columns("Quantity")
            Me.columnAmount = Me.Columns("Amount")
            Me.columnProductName = Me.Columns("ProductName")
        End Sub
        
        Private Sub InitClass()
            Me.columnProductID = New DataColumn("ProductID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnProductID)
            Me.columnTransferDate = New DataColumn("TransferDate", GetType(System.DateTime), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnTransferDate)
            Me.columnChangeKind = New DataColumn("ChangeKind", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnChangeKind)
            Me.columnChangeDescription = New DataColumn("ChangeDescription", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnChangeDescription)
            Me.columnTransferID = New DataColumn("TransferID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnTransferID)
            Me.columnQuantity = New DataColumn("Quantity", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnQuantity)
            Me.columnAmount = New DataColumn("Amount", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnAmount)
            Me.columnProductName = New DataColumn("ProductName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnProductName)
            Me.Constraints.Add(New UniqueConstraint("dsIN220Key1", New DataColumn() {Me.columnProductID, Me.columnTransferDate, Me.columnChangeKind, Me.columnTransferID}, false))
            Me.columnProductID.AllowDBNull = false
            Me.columnTransferDate.AllowDBNull = false
            Me.columnChangeKind.AllowDBNull = false
            Me.columnTransferID.AllowDBNull = false
        End Sub
        
        Public Function NewIN220Row() As IN220Row
            Return CType(Me.NewRow,IN220Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New IN220Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(IN220Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.IN220RowChangedEvent) Is Nothing) Then
                RaiseEvent IN220RowChanged(Me, New IN220RowChangeEvent(CType(e.Row,IN220Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.IN220RowChangingEvent) Is Nothing) Then
                RaiseEvent IN220RowChanging(Me, New IN220RowChangeEvent(CType(e.Row,IN220Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.IN220RowDeletedEvent) Is Nothing) Then
                RaiseEvent IN220RowDeleted(Me, New IN220RowChangeEvent(CType(e.Row,IN220Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.IN220RowDeletingEvent) Is Nothing) Then
                RaiseEvent IN220RowDeleting(Me, New IN220RowChangeEvent(CType(e.Row,IN220Row), e.Action))
            End If
        End Sub
        
        Public Sub RemoveIN220Row(ByVal row As IN220Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class IN220Row
        Inherits DataRow
        
        Private tableIN220 As IN220DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tableIN220 = CType(Me.Table,IN220DataTable)
        End Sub
        
        Public Property ProductID As String
            Get
                Return CType(Me(Me.tableIN220.ProductIDColumn),String)
            End Get
            Set
                Me(Me.tableIN220.ProductIDColumn) = value
            End Set
        End Property
        
        Public Property TransferDate As Date
            Get
                Return CType(Me(Me.tableIN220.TransferDateColumn),Date)
            End Get
            Set
                Me(Me.tableIN220.TransferDateColumn) = value
            End Set
        End Property
        
        Public Property ChangeKind As String
            Get
                Return CType(Me(Me.tableIN220.ChangeKindColumn),String)
            End Get
            Set
                Me(Me.tableIN220.ChangeKindColumn) = value
            End Set
        End Property
        
        Public Property ChangeDescription As String
            Get
                Try 
                    Return CType(Me(Me.tableIN220.ChangeDescriptionColumn),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.tableIN220.ChangeDescriptionColumn) = value
            End Set
        End Property
        
        Public Property TransferID As String
            Get
                Return CType(Me(Me.tableIN220.TransferIDColumn),String)
            End Get
            Set
                Me(Me.tableIN220.TransferIDColumn) = value
            End Set
        End Property
        
        Public Property Quantity As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableIN220.QuantityColumn),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.tableIN220.QuantityColumn) = value
            End Set
        End Property
        
        Public Property Amount As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableIN220.AmountColumn),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.tableIN220.AmountColumn) = value
            End Set
        End Property
        
        Public Property ProductName As String
            Get
                Try 
                    Return CType(Me(Me.tableIN220.ProductNameColumn),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.tableIN220.ProductNameColumn) = value
            End Set
        End Property
        
        Public Function IsChangeDescriptionNull() As Boolean
            Return Me.IsNull(Me.tableIN220.ChangeDescriptionColumn)
        End Function
        
        Public Sub SetChangeDescriptionNull()
            Me(Me.tableIN220.ChangeDescriptionColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsQuantityNull() As Boolean
            Return Me.IsNull(Me.tableIN220.QuantityColumn)
        End Function
        
        Public Sub SetQuantityNull()
            Me(Me.tableIN220.QuantityColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsAmountNull() As Boolean
            Return Me.IsNull(Me.tableIN220.AmountColumn)
        End Function
        
        Public Sub SetAmountNull()
            Me(Me.tableIN220.AmountColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsProductNameNull() As Boolean
            Return Me.IsNull(Me.tableIN220.ProductNameColumn)
        End Function
        
        Public Sub SetProductNameNull()
            Me(Me.tableIN220.ProductNameColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class IN220RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As IN220Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As IN220Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As IN220Row
            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