northwinddataset.designer.vb

来自「wrox出版社的另一套经典的VB2005数据库编程学习书籍,收集了书中源码,郑重」· VB 代码 · 共 1,373 行 · 第 1/5 页

                                                If (Not (Me.ReorderLevelChangedEvent) Is Nothing) Then
                                                    RaiseEvent ReorderLevelChanged(Me, New ReorderLevelChangeEventArg(e))
                                                End If
                                            Else
                                                If (e.Column.ColumnName Is "Discontinued") Then
                                                    If (Not (Me.DiscontinuedChangedEvent) Is Nothing) Then
                                                        RaiseEvent DiscontinuedChanged(Me, New DiscontinuedChangeEventArg(e))
                                                    End If
                                                End If
                                            End If
                                        End If
                                    End If
                                End If
                            End If
                        End If
                    End If
                End If
            End If
        End Sub
        
        Public Overloads Sub AddProductsRow(ByVal row As ProductsRow)
            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function AddProductsRow(ByVal ProductName As String, ByVal SupplierID As Integer, ByVal CategoryID As Integer, ByVal QuantityPerUnit As String, ByVal UnitPrice As Decimal, ByVal UnitsInStock As Short, ByVal UnitsOnOrder As Short, ByVal ReorderLevel As Short, ByVal Discontinued As Boolean) As ProductsRow
            Dim rowProductsRow As ProductsRow = CType(Me.NewRow,ProductsRow)
            rowProductsRow.ItemArray = New Object() {Nothing, ProductName, SupplierID, CategoryID, QuantityPerUnit, UnitPrice, UnitsInStock, UnitsOnOrder, ReorderLevel, Discontinued}
            Me.Rows.Add(rowProductsRow)
            Return rowProductsRow
        End Function
        
        Public Function FindByProductID(ByVal ProductID As Integer) As ProductsRow
            Return CType(Me.Rows.Find(New Object() {ProductID}),ProductsRow)
        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 System.Data.DataTable
            Dim cln As ProductsDataTable = CType(MyBase.Clone,ProductsDataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As System.Data.DataTable
            Return New ProductsDataTable
        End Function
        
        Friend Sub InitVars()
            Me.columnProductID = MyBase.Columns("ProductID")
            Me.columnProductName = MyBase.Columns("ProductName")
            Me.columnSupplierID = MyBase.Columns("SupplierID")
            Me.columnCategoryID = MyBase.Columns("CategoryID")
            Me.columnQuantityPerUnit = MyBase.Columns("QuantityPerUnit")
            Me.columnUnitPrice = MyBase.Columns("UnitPrice")
            Me.columnUnitsInStock = MyBase.Columns("UnitsInStock")
            Me.columnUnitsOnOrder = MyBase.Columns("UnitsOnOrder")
            Me.columnReorderLevel = MyBase.Columns("ReorderLevel")
            Me.columnDiscontinued = MyBase.Columns("Discontinued")
        End Sub
        
        Private Sub InitClass()
            Me.columnProductID = New System.Data.DataColumn("ProductID", GetType(Integer), Nothing, System.Data.MappingType.Element)
            Me.columnProductID.ExtendedProperties.Add("Generator_ChangedEventName", "ProductIDChanged")
            Me.columnProductID.ExtendedProperties.Add("Generator_ChangingEventName", "ProductIDChanging")
            Me.columnProductID.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "ProductID")
            Me.columnProductID.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "ProductIDColumn")
            Me.columnProductID.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnProductID")
            Me.columnProductID.ExtendedProperties.Add("Generator_DelegateName", "ProductIDChangeEventHandler")
            Me.columnProductID.ExtendedProperties.Add("Generator_EventArgName", "ProductIDChangeEventArg")
            Me.columnProductID.ExtendedProperties.Add("User_ColumnName", "ProductID")
            MyBase.Columns.Add(Me.columnProductID)
            Me.columnProductName = New System.Data.DataColumn("ProductName", GetType(String), Nothing, System.Data.MappingType.Element)
            Me.columnProductName.ExtendedProperties.Add("Generator_ChangedEventName", "ProductNameChanged")
            Me.columnProductName.ExtendedProperties.Add("Generator_ChangingEventName", "ProductNameChanging")
            Me.columnProductName.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "ProductName")
            Me.columnProductName.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "ProductNameColumn")
            Me.columnProductName.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnProductName")
            Me.columnProductName.ExtendedProperties.Add("Generator_DelegateName", "ProductNameChangeEventHandler")
            Me.columnProductName.ExtendedProperties.Add("Generator_EventArgName", "ProductNameChangeEventArg")
            Me.columnProductName.ExtendedProperties.Add("User_ColumnName", "ProductName")
            MyBase.Columns.Add(Me.columnProductName)
            Me.columnSupplierID = New System.Data.DataColumn("SupplierID", GetType(Integer), Nothing, System.Data.MappingType.Element)
            Me.columnSupplierID.ExtendedProperties.Add("Generator_ChangedEventName", "SupplierIDChanged")
            Me.columnSupplierID.ExtendedProperties.Add("Generator_ChangingEventName", "SupplierIDChanging")
            Me.columnSupplierID.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "SupplierID")
            Me.columnSupplierID.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "SupplierIDColumn")
            Me.columnSupplierID.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnSupplierID")
            Me.columnSupplierID.ExtendedProperties.Add("Generator_DelegateName", "SupplierIDChangeEventHandler")
            Me.columnSupplierID.ExtendedProperties.Add("Generator_EventArgName", "SupplierIDChangeEventArg")
            Me.columnSupplierID.ExtendedProperties.Add("User_ColumnName", "SupplierID")
            MyBase.Columns.Add(Me.columnSupplierID)
            Me.columnCategoryID = New System.Data.DataColumn("CategoryID", GetType(Integer), Nothing, System.Data.MappingType.Element)
            Me.columnCategoryID.ExtendedProperties.Add("Generator_ChangedEventName", "CategoryIDChanged")
            Me.columnCategoryID.ExtendedProperties.Add("Generator_ChangingEventName", "CategoryIDChanging")
            Me.columnCategoryID.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "CategoryID")
            Me.columnCategoryID.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "CategoryIDColumn")
            Me.columnCategoryID.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnCategoryID")
            Me.columnCategoryID.ExtendedProperties.Add("Generator_DelegateName", "CategoryIDChangeEventHandler")
            Me.columnCategoryID.ExtendedProperties.Add("Generator_EventArgName", "CategoryIDChangeEventArg")
            Me.columnCategoryID.ExtendedProperties.Add("User_ColumnName", "CategoryID")
            MyBase.Columns.Add(Me.columnCategoryID)
            Me.columnQuantityPerUnit = New System.Data.DataColumn("QuantityPerUnit", GetType(String), Nothing, System.Data.MappingType.Element)
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_ChangedEventName", "QuantityPerUnitChanged")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_ChangingEventName", "QuantityPerUnitChanging")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "QuantityPerUnit")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "QuantityPerUnitColumn")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnQuantityPerUnit")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_DelegateName", "QuantityPerUnitChangeEventHandler")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("Generator_EventArgName", "QuantityPerUnitChangeEventArg")
            Me.columnQuantityPerUnit.ExtendedProperties.Add("User_ColumnName", "QuantityPerUnit")
            MyBase.Columns.Add(Me.columnQuantityPerUnit)
            Me.columnUnitPrice = New System.Data.DataColumn("UnitPrice", GetType(Decimal), Nothing, System.Data.MappingType.Element)
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_ChangedEventName", "UnitPriceChanged")
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_ChangingEventName", "UnitPriceChanging")
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "UnitPrice")
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "UnitPriceColumn")
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnUnitPrice")
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_DelegateName", "UnitPriceChangeEventHandler")
            Me.columnUnitPrice.ExtendedProperties.Add("Generator_EventArgName", "UnitPriceChangeEventArg")
            Me.columnUnitPrice.ExtendedProperties.Add("User_ColumnName", "UnitPrice")
            MyBase.Columns.Add(Me.columnUnitPrice)
            Me.columnUnitsInStock = New System.Data.DataColumn("UnitsInStock", GetType(Short), Nothing, System.Data.MappingType.Element)
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_ChangedEventName", "UnitsInStockChanged")
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_ChangingEventName", "UnitsInStockChanging")
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "UnitsInStock")
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "UnitsInStockColumn")
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnUnitsInStock")
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_DelegateName", "UnitsInStockChangeEventHandler")
            Me.columnUnitsInStock.ExtendedProperties.Add("Generator_EventArgName", "UnitsInStockChangeEventArg")
            Me.columnUnitsInStock.ExtendedProperties.Add("User_ColumnName", "UnitsInStock")
            MyBase.Columns.Add(Me.columnUnitsInStock)
            Me.columnUnitsOnOrder = New System.Data.DataColumn("UnitsOnOrder", GetType(Short), Nothing, System.Data.MappingType.Element)
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_ChangedEventName", "UnitsOnOrderChanged")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_ChangingEventName", "UnitsOnOrderChanging")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "UnitsOnOrder")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "UnitsOnOrderColumn")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnUnitsOnOrder")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_DelegateName", "UnitsOnOrderChangeEventHandler")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("Generator_EventArgName", "UnitsOnOrderChangeEventArg")
            Me.columnUnitsOnOrder.ExtendedProperties.Add("User_ColumnName", "UnitsOnOrder")
            MyBase.Columns.Add(Me.columnUnitsOnOrder)
            Me.columnReorderLevel = New System.Data.DataColumn("ReorderLevel", GetType(Short), Nothing, System.Data.MappingType.Element)
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_ChangedEventName", "ReorderLevelChanged")
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_ChangingEventName", "ReorderLevelChanging")
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "ReorderLevel")
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "ReorderLevelColumn")
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnReorderLevel")
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_DelegateName", "ReorderLevelChangeEventHandler")
            Me.columnReorderLevel.ExtendedProperties.Add("Generator_EventArgName", "ReorderLevelChangeEventArg")
            Me.columnReorderLevel.ExtendedProperties.Add("User_ColumnName", "ReorderLevel")
            MyBase.Columns.Add(Me.columnReorderLevel)
            Me.columnDiscontinued = New System.Data.DataColumn("Discontinued", GetType(Boolean), Nothing, System.Data.MappingType.Element)
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_ChangedEventName", "DiscontinuedChanged")
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_ChangingEventName", "DiscontinuedChanging")
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_ColumnPropNameInRow", "Discontinued")
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_ColumnPropNameInTable", "DiscontinuedColumn")
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_ColumnVarNameInTable", "columnDiscontinued")
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_DelegateName", "DiscontinuedChangeEventHandler")
            Me.columnDiscontinued.ExtendedProperties.Add("Generator_EventArgName", "DiscontinuedChangeEventArg")
            Me.columnDiscontinued.ExtendedProperties.Add("User_ColumnName", "Discontinued")
            MyBase.Columns.Add(Me.columnDiscontinued)
            Me.Constraints.Add(New System.Data.UniqueConstraint("Constraint1", New System.Data.DataColumn() {Me.columnProductID}, true))
            Me.columnProductID.AutoIncrement = true
            Me.columnProductID.AllowDBNull = false
            Me.columnProductID.ReadOnly = true
            Me.columnProductID.Unique = true
            Me.columnProductName.AllowDBNull = false
            Me.columnProductName.MaxLength = 40
            Me.columnQuantityPerUnit.MaxLength = 20
            Me.columnDiscontinued.AllowDBNull = false
            Me.ExtendedProperties.Add("Generator_RowClassName", "ProductsRow")
            Me.ExtendedProperties.Add("Generator_RowEvArgName", "ProductsRowChangeEvent")
            Me.ExtendedProperties.Add("Generator_RowEvHandlerName", "ProductsRowChangeEventHandler")
            Me.ExtendedProperties.Add("Generator_SuspendValidationPropName", "SuspendValidation")
            Me.ExtendedProperties.Add("Generator_SuspendValidationVarName", "m_suspendValidation")
            Me.ExtendedProperties.Add("Generator_TableClassName", "ProductsDataTable")
            Me.ExtendedProperties.Add("Generator_TablePropName", "Products")
            Me.ExtendedProperties.Add("Generator_TableVarName", "tableProducts")
            Me.ExtendedProperties.Add("User_TableName", "Products")
        End Sub
        
        Public Function NewProductsRow() As ProductsRow
            Return CType(Me.NewRow,ProductsRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As System.Data.DataRowBuilder) As System.Data.DataRow
            Return New ProductsRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(ProductsRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As System.Data.DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.ProductsRowChangedEvent) Is Nothing) Then
                RaiseEvent ProductsRowChanged(Me, New ProductsRowChangeEvent(CType(e.Row,ProductsRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As System.Data.DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.ProductsRowChangingEvent) Is Nothing) Then
                RaiseEvent ProductsRowChanging(Me, New ProductsRowChangeEvent(CType(e.Row,ProductsRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As System.Data.DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.ProductsRowDeletedEvent) Is Nothing) Then
                RaiseEvent ProductsRowDeleted(Me, New ProductsRowChangeEvent(CType(e.Row,ProductsRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As System.Data.DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.ProductsRowDeletingEvent) Is Nothing) Then
                RaiseEvent ProductsRowDeleting(Me, New ProductsRowChangeEvent(CType(e.Row,ProductsRow), e.Action))
            End If
        End Sub
        
        Public Sub RemoveProductsRow(ByVal row As ProductsRow)
            Me.Rows.Remove(row)
        End Sub
        
        Public Shared Function GetTypedTableSchema(ByVal xs As System.Xml.Schema.XmlSchemaSet) As System.Xml.Schema.XmlSchemaComplexType
            Dim type As System.Xml.Schema.XmlSchemaComplexType = New System.Xml.Schema.XmlSchemaComplexType
            Dim sequence As System.Xml.Schema.XmlSchemaSequence = New System.Xml.Schema.XmlSchemaSequence
            Dim ds As NorthwindDataSet = New NorthwindDataSet
            xs.Add(ds.GetSchemaSerializable)
            Dim any1 As System.Xml.Schema.XmlSchemaAny = New System.Xml.Schema.XmlSchemaAny
            any1.Namespace = "http://www.w3.org/2001/XMLSchema"
            any1.MinOccurs = New Decimal(0)
            any1.MaxOccurs = Decimal.MaxValue
            any1.ProcessContents = System.Xml.Schema.XmlSchemaContentProcessing.Lax
            sequence.Items.Add(any1)
            Dim any2 As System.Xml.Schema.XmlSchemaAny = New System.Xml.Schema.XmlSchemaAny
            any2.Namespace = "urn:schemas-microsoft-com:xml-diffgram-v1"
            any2.MinOccurs = New Decimal(1)
            any2.ProcessContents = System.Xml.Schema.XmlSchemaContentProcessing.Lax
            sequence.Items.Add(any2)
            Dim attribute1 As System.Xml.Schema.XmlSchemaAttribute = New System.Xml.Schema.XmlSchemaAttribute
            attribute1.Name = "namespace"
            attribute1.FixedValue = ds.Namespace
            type.Attributes.Add(attribute1)
            Dim attribute2 As System.Xml.Schema.XmlSchemaAttribute = New System.Xml.Schema.XmlSchemaAttribute
            attribute2.Name = "tableTypeName"
            attribute2.FixedValue = "ProductsDataTable"
            type.Attributes.Add(attribute2)
            type.Particle = sequence
            Return type
        End Function
        
        Public Delegate Sub ProductIDChangeEventHandler(ByVal sender As ProductsDataTable, ByVal e As ProductIDChangeEventArg)
        
        Public Class ProductIDChangeEventArg
            Inherits System.EventArgs
            
            Private evArgs As System.Data.DataColumnChangeEventArgs
            
            Public Sub New(ByVal args As System.Data.DataColumnChangeEventArgs)
                MyBase.New
                Me.evArgs = args
            End Sub
            
            Public ReadOnly Property Row() As ProductsRow
                Get
                    Return CType(Me.evArgs.Row,ProductsRow)
                End Get
            End Property
            
            Public ReadOnly Property ProductIDColumn() As System.Data.DataColumn
                Get