dataset1.vb

Visual.Basic.NET实用编程百例-47.6M.zip

'------------------------------------------------------------------------------
' <autogenerated>
'     This code was generated by a tool.
'     Runtime Version: 1.1.4322.573
'
'     Changes to this file may cause incorrect behavior and will be lost if 
'     the code is regenerated.
' </autogenerated>
'------------------------------------------------------------------------------

Option Strict Off
Option Explicit On

Imports System
Imports System.Data
Imports System.Runtime.Serialization
Imports System.Xml


<Serializable(),  _
 System.ComponentModel.DesignerCategoryAttribute("code"),  _
 System.Diagnostics.DebuggerStepThrough(),  _
 System.ComponentModel.ToolboxItem(true)>  _
Public Class DataSet1
    Inherits DataSet
    
    Private tableOrderDetail As OrderDetailDataTable
    
    Private tableOrder As OrderDataTable
    
    Public Sub New()
        MyBase.New
        Me.InitClass
        Dim schemaChangedHandler As System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
        AddHandler Me.Tables.CollectionChanged, schemaChangedHandler
        AddHandler Me.Relations.CollectionChanged, schemaChangedHandler
    End Sub
    
    Protected Sub New(ByVal info As SerializationInfo, ByVal context As StreamingContext)
        MyBase.New
        Dim strSchema As String = CType(info.GetValue("XmlSchema", GetType(System.String)),String)
        If (Not (strSchema) Is Nothing) Then
            Dim ds As DataSet = New DataSet
            ds.ReadXmlSchema(New XmlTextReader(New System.IO.StringReader(strSchema)))
            If (Not (ds.Tables("OrderDetail")) Is Nothing) Then
                Me.Tables.Add(New OrderDetailDataTable(ds.Tables("OrderDetail")))
            End If
            If (Not (ds.Tables("Order")) Is Nothing) Then
                Me.Tables.Add(New OrderDataTable(ds.Tables("Order")))
            End If
            Me.DataSetName = ds.DataSetName
            Me.Prefix = ds.Prefix
            Me.Namespace = ds.Namespace
            Me.Locale = ds.Locale
            Me.CaseSensitive = ds.CaseSensitive
            Me.EnforceConstraints = ds.EnforceConstraints
            Me.Merge(ds, false, System.Data.MissingSchemaAction.Add)
            Me.InitVars
        Else
            Me.InitClass
        End If
        Me.GetSerializationData(info, context)
        Dim schemaChangedHandler As System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
        AddHandler Me.Tables.CollectionChanged, schemaChangedHandler
        AddHandler Me.Relations.CollectionChanged, schemaChangedHandler
    End Sub
    
    <System.ComponentModel.Browsable(false),  _
     System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Content)>  _
    Public ReadOnly Property OrderDetail As OrderDetailDataTable
        Get
            Return Me.tableOrderDetail
        End Get
    End Property
    
    <System.ComponentModel.Browsable(false),  _
     System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Content)>  _
    Public ReadOnly Property Order As OrderDataTable
        Get
            Return Me.tableOrder
        End Get
    End Property
    
    Public Overrides Function Clone() As DataSet
        Dim cln As DataSet1 = CType(MyBase.Clone,DataSet1)
        cln.InitVars
        Return cln
    End Function
    
    Protected Overrides Function ShouldSerializeTables() As Boolean
        Return false
    End Function
    
    Protected Overrides Function ShouldSerializeRelations() As Boolean
        Return false
    End Function
    
    Protected Overrides Sub ReadXmlSerializable(ByVal reader As XmlReader)
        Me.Reset
        Dim ds As DataSet = New DataSet
        ds.ReadXml(reader)
        If (Not (ds.Tables("OrderDetail")) Is Nothing) Then
            Me.Tables.Add(New OrderDetailDataTable(ds.Tables("OrderDetail")))
        End If
        If (Not (ds.Tables("Order")) Is Nothing) Then
            Me.Tables.Add(New OrderDataTable(ds.Tables("Order")))
        End If
        Me.DataSetName = ds.DataSetName
        Me.Prefix = ds.Prefix
        Me.Namespace = ds.Namespace
        Me.Locale = ds.Locale
        Me.CaseSensitive = ds.CaseSensitive
        Me.EnforceConstraints = ds.EnforceConstraints
        Me.Merge(ds, false, System.Data.MissingSchemaAction.Add)
        Me.InitVars
    End Sub
    
    Protected Overrides Function GetSchemaSerializable() As System.Xml.Schema.XmlSchema
        Dim stream As System.IO.MemoryStream = New System.IO.MemoryStream
        Me.WriteXmlSchema(New XmlTextWriter(stream, Nothing))
        stream.Position = 0
        Return System.Xml.Schema.XmlSchema.Read(New XmlTextReader(stream), Nothing)
    End Function
    
    Friend Sub InitVars()
        Me.tableOrderDetail = CType(Me.Tables("OrderDetail"),OrderDetailDataTable)
        If (Not (Me.tableOrderDetail) Is Nothing) Then
            Me.tableOrderDetail.InitVars
        End If
        Me.tableOrder = CType(Me.Tables("Order"),OrderDataTable)
        If (Not (Me.tableOrder) Is Nothing) Then
            Me.tableOrder.InitVars
        End If
    End Sub
    
    Private Sub InitClass()
        Me.DataSetName = "DataSet1"
        Me.Prefix = ""
        Me.Namespace = "http://www.tempuri.org/DataSet1.xsd"
        Me.Locale = New System.Globalization.CultureInfo("zh-CN")
        Me.CaseSensitive = false
        Me.EnforceConstraints = true
        Me.tableOrderDetail = New OrderDetailDataTable
        Me.Tables.Add(Me.tableOrderDetail)
        Me.tableOrder = New OrderDataTable
        Me.Tables.Add(Me.tableOrder)
    End Sub
    
    Private Function ShouldSerializeOrderDetail() As Boolean
        Return false
    End Function
    
    Private Function ShouldSerializeOrder() As Boolean
        Return false
    End Function
    
    Private Sub SchemaChanged(ByVal sender As Object, ByVal e As System.ComponentModel.CollectionChangeEventArgs)
        If (e.Action = System.ComponentModel.CollectionChangeAction.Remove) Then
            Me.InitVars
        End If
    End Sub
    
    Public Delegate Sub OrderDetailRowChangeEventHandler(ByVal sender As Object, ByVal e As OrderDetailRowChangeEvent)
    
    Public Delegate Sub OrderRowChangeEventHandler(ByVal sender As Object, ByVal e As OrderRowChangeEvent)
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class OrderDetailDataTable
        Inherits DataTable
        Implements System.Collections.IEnumerable
        
        Private columnDiscount As DataColumn
        
        Private columnOrderID As DataColumn
        
        Private columnQuantity As DataColumn
        
        Private columnUnitPrice As DataColumn
        
        Friend Sub New()
            MyBase.New("OrderDetail")
            Me.InitClass
        End Sub
        
        Friend Sub New(ByVal table As DataTable)
            MyBase.New(table.TableName)
            If (table.CaseSensitive <> table.DataSet.CaseSensitive) Then
                Me.CaseSensitive = table.CaseSensitive
            End If
            If (table.Locale.ToString <> table.DataSet.Locale.ToString) Then
                Me.Locale = table.Locale
            End If
            If (table.Namespace <> table.DataSet.Namespace) Then
                Me.Namespace = table.Namespace
            End If
            Me.Prefix = table.Prefix
            Me.MinimumCapacity = table.MinimumCapacity
            Me.DisplayExpression = table.DisplayExpression
        End Sub
        
        <System.ComponentModel.Browsable(false)>  _
        Public ReadOnly Property Count As Integer
            Get
                Return Me.Rows.Count
            End Get
        End Property
        
        Friend ReadOnly Property DiscountColumn As DataColumn
            Get
                Return Me.columnDiscount
            End Get
        End Property
        
        Friend ReadOnly Property OrderIDColumn As DataColumn
            Get
                Return Me.columnOrderID
            End Get
        End Property
        
        Friend ReadOnly Property QuantityColumn As DataColumn
            Get
                Return Me.columnQuantity
            End Get
        End Property
        
        Friend ReadOnly Property UnitPriceColumn As DataColumn
            Get
                Return Me.columnUnitPrice
            End Get
        End Property
        
        Public Default ReadOnly Property Item(ByVal index As Integer) As OrderDetailRow
            Get
                Return CType(Me.Rows(index),OrderDetailRow)
            End Get
        End Property
        
        Public Event OrderDetailRowChanged As OrderDetailRowChangeEventHandler
        
        Public Event OrderDetailRowChanging As OrderDetailRowChangeEventHandler
        
        Public Event OrderDetailRowDeleted As OrderDetailRowChangeEventHandler
        
        Public Event OrderDetailRowDeleting As OrderDetailRowChangeEventHandler
        
        Public Overloads Sub AddOrderDetailRow(ByVal row As OrderDetailRow)
            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function AddOrderDetailRow(ByVal Discount As String, ByVal OrderID As String, ByVal Quantity As String, ByVal UnitPrice As String) As OrderDetailRow
            Dim rowOrderDetailRow As OrderDetailRow = CType(Me.NewRow,OrderDetailRow)
            rowOrderDetailRow.ItemArray = New Object() {Discount, OrderID, Quantity, UnitPrice}
            Me.Rows.Add(rowOrderDetailRow)
            Return rowOrderDetailRow
        End Function
        
        Public Function FindByOrderID(ByVal OrderID As String) As OrderDetailRow
            Return CType(Me.Rows.Find(New Object() {OrderID}),OrderDetailRow)
        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 OrderDetailDataTable = CType(MyBase.Clone,OrderDetailDataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New OrderDetailDataTable
        End Function
        
        Friend Sub InitVars()
            Me.columnDiscount = Me.Columns("Discount")
            Me.columnOrderID = Me.Columns("OrderID")
            Me.columnQuantity = Me.Columns("Quantity")
            Me.columnUnitPrice = Me.Columns("UnitPrice")
        End Sub
        
        Private Sub InitClass()
            Me.columnDiscount = New DataColumn("Discount", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnDiscount)
            Me.columnOrderID = New DataColumn("OrderID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnOrderID)
            Me.columnQuantity = New DataColumn("Quantity", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnQuantity)
            Me.columnUnitPrice = New DataColumn("UnitPrice", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnUnitPrice)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.columnOrderID}, true))
            Me.columnOrderID.AllowDBNull = false
            Me.columnOrderID.Unique = true
        End Sub
        
        Public Function NewOrderDetailRow() As OrderDetailRow
            Return CType(Me.NewRow,OrderDetailRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New OrderDetailRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(OrderDetailRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.OrderDetailRowChangedEvent) Is Nothing) Then
                RaiseEvent OrderDetailRowChanged(Me, New OrderDetailRowChangeEvent(CType(e.Row,OrderDetailRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.OrderDetailRowChangingEvent) Is Nothing) Then
                RaiseEvent OrderDetailRowChanging(Me, New OrderDetailRowChangeEvent(CType(e.Row,OrderDetailRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.OrderDetailRowDeletedEvent) Is Nothing) Then
                RaiseEvent OrderDetailRowDeleted(Me, New OrderDetailRowChangeEvent(CType(e.Row,OrderDetailRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.OrderDetailRowDeletingEvent) Is Nothing) Then
                RaiseEvent OrderDetailRowDeleting(Me, New OrderDetailRowChangeEvent(CType(e.Row,OrderDetailRow), e.Action))
            End If
        End Sub
        
        Public Sub RemoveOrderDetailRow(ByVal row As OrderDetailRow)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class OrderDetailRow
        Inherits DataRow
        
        Private tableOrderDetail As OrderDetailDataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tableOrderDetail = CType(Me.Table,OrderDetailDataTable)
        End Sub
        
        Public Property Discount As String
            Get