dsin240.vb

通用进销存-visual basic编写

            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function AddIN240Row(ByVal ProductID As String, ByVal ProductName As String, ByVal SafeStock As Decimal, ByVal Quantity As Decimal, ByVal Balance As Decimal) As IN240Row
            Dim rowIN240Row As IN240Row = CType(Me.NewRow,IN240Row)
            rowIN240Row.ItemArray = New Object() {ProductID, ProductName, SafeStock, Quantity, Balance}
            Me.Rows.Add(rowIN240Row)
            Return rowIN240Row
        End Function
        
        Public Function FindByProductID(ByVal ProductID As String) As IN240Row
            Return CType(Me.Rows.Find(New Object() {ProductID}),IN240Row)
        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 IN240DataTable = CType(MyBase.Clone,IN240DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Friend Sub InitVars()
            Me.columnProductID = Me.Columns("ProductID")
            Me.columnProductName = Me.Columns("ProductName")
            Me.columnSafeStock = Me.Columns("SafeStock")
            Me.columnQuantity = Me.Columns("Quantity")
            Me.columnBalance = Me.Columns("Balance")
        End Sub
        
        Private Sub InitClass()
            Me.columnProductID = New DataColumn("ProductID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnProductID)
            Me.columnProductName = New DataColumn("ProductName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnProductName)
            Me.columnSafeStock = New DataColumn("SafeStock", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnSafeStock)
            Me.columnQuantity = New DataColumn("Quantity", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnQuantity)
            Me.columnBalance = New DataColumn("Balance", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnBalance)
            Me.Constraints.Add(New UniqueConstraint("dsIN240Key1", New DataColumn() {Me.columnProductID}, true))
            Me.columnProductID.AllowDBNull = false
            Me.columnProductID.Unique = true
        End Sub
        
        Public Function NewIN240Row() As IN240Row
            Return CType(Me.NewRow,IN240Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New IN240Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(IN240Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.IN240RowChangedEvent) Is Nothing) Then
                RaiseEvent IN240RowChanged(Me, New IN240RowChangeEvent(CType(e.Row,IN240Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.IN240RowChangingEvent) Is Nothing) Then
                RaiseEvent IN240RowChanging(Me, New IN240RowChangeEvent(CType(e.Row,IN240Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.IN240RowDeletedEvent) Is Nothing) Then
                RaiseEvent IN240RowDeleted(Me, New IN240RowChangeEvent(CType(e.Row,IN240Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.IN240RowDeletingEvent) Is Nothing) Then
                RaiseEvent IN240RowDeleting(Me, New IN240RowChangeEvent(CType(e.Row,IN240Row), e.Action))
            End If
        End Sub
        
        Public Sub RemoveIN240Row(ByVal row As IN240Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class IN240Row
        Inherits DataRow
        
        Private tableIN240 As IN240DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tableIN240 = CType(Me.Table,IN240DataTable)
        End Sub
        
        Public Property ProductID As String
            Get
                Return CType(Me(Me.tableIN240.ProductIDColumn),String)
            End Get
            Set
                Me(Me.tableIN240.ProductIDColumn) = value
            End Set
        End Property
        
        Public Property ProductName As String
            Get
                Try 
                    Return CType(Me(Me.tableIN240.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.tableIN240.ProductNameColumn) = value
            End Set
        End Property
        
        Public Property SafeStock As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableIN240.SafeStockColumn),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.tableIN240.SafeStockColumn) = value
            End Set
        End Property
        
        Public Property Quantity As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableIN240.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.tableIN240.QuantityColumn) = value
            End Set
        End Property
        
        Public Property Balance As Decimal
            Get
                Try 
                    Return CType(Me(Me.tableIN240.BalanceColumn),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.tableIN240.BalanceColumn) = value
            End Set
        End Property
        
        Public Function IsProductNameNull() As Boolean
            Return Me.IsNull(Me.tableIN240.ProductNameColumn)
        End Function
        
        Public Sub SetProductNameNull()
            Me(Me.tableIN240.ProductNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsSafeStockNull() As Boolean
            Return Me.IsNull(Me.tableIN240.SafeStockColumn)
        End Function
        
        Public Sub SetSafeStockNull()
            Me(Me.tableIN240.SafeStockColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsQuantityNull() As Boolean
            Return Me.IsNull(Me.tableIN240.QuantityColumn)
        End Function
        
        Public Sub SetQuantityNull()
            Me(Me.tableIN240.QuantityColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsBalanceNull() As Boolean
            Return Me.IsNull(Me.tableIN240.BalanceColumn)
        End Function
        
        Public Sub SetBalanceNull()
            Me(Me.tableIN240.BalanceColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class IN240RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As IN240Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As IN240Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As IN240Row
            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