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
VB
1,373 行
'------------------------------------------------------------------------------
' <autogenerated>
' This code was generated by a tool.
' Runtime Version:2.0.40607.42
'
' 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
<Serializable(), _
System.ComponentModel.DesignerCategoryAttribute("code"), _
System.ComponentModel.ToolboxItem(true), _
System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedDataSetSchema"), _
System.Xml.Serialization.XmlRootAttribute("NorthwindDataSet")> _
Partial Public Class NorthwindDataSet
Inherits System.Data.DataSet
Private tableProducts As ProductsDataTable
Private tableSuppliers As SuppliersDataTable
Public Sub New()
MyBase.New
Me.BeginInit
Me.InitClass
Dim schemaChangedHandler As System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
AddHandler MyBase.Tables.CollectionChanged, schemaChangedHandler
AddHandler MyBase.Relations.CollectionChanged, schemaChangedHandler
Me.EndInit
End Sub
Protected Sub New(ByVal info As System.Runtime.Serialization.SerializationInfo, ByVal context As System.Runtime.Serialization.StreamingContext)
MyBase.New(info, context)
If (Me.IsBinarySerialized(info, context) = true) Then
Me.InitVars(false)
Dim schemaChangedHandler1 As System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
AddHandler Me.Tables.CollectionChanged, schemaChangedHandler1
AddHandler Me.Relations.CollectionChanged, schemaChangedHandler1
Return
End If
Dim strSchema As String = CType(info.GetValue("XmlSchema", GetType(String)),String)
If (Not (strSchema) Is Nothing) Then
Dim ds As System.Data.DataSet = New System.Data.DataSet
ds.ReadXmlSchema(New System.Xml.XmlTextReader(New System.IO.StringReader(strSchema)))
If (Not (ds.Tables("Products")) Is Nothing) Then
MyBase.Tables.Add(New ProductsDataTable(ds.Tables("Products")))
End If
If (Not (ds.Tables("Suppliers")) Is Nothing) Then
MyBase.Tables.Add(New SuppliersDataTable(ds.Tables("Suppliers")))
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.BeginInit
Me.InitClass
Me.EndInit
End If
Me.GetSerializationData(info, context)
Dim schemaChangedHandler As System.ComponentModel.CollectionChangeEventHandler = AddressOf Me.SchemaChanged
AddHandler MyBase.Tables.CollectionChanged, schemaChangedHandler
AddHandler Me.Relations.CollectionChanged, schemaChangedHandler
End Sub
<System.ComponentModel.Browsable(false), _
System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Content)> _
Public ReadOnly Property Products() As ProductsDataTable
Get
Return Me.tableProducts
End Get
End Property
<System.ComponentModel.Browsable(false), _
System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Content)> _
Public ReadOnly Property Suppliers() As SuppliersDataTable
Get
Return Me.tableSuppliers
End Get
End Property
<System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)> _
Public Shadows ReadOnly Property Tables() As System.Data.DataTableCollection
Get
Return MyBase.Tables
End Get
End Property
<System.ComponentModel.DesignerSerializationVisibilityAttribute(System.ComponentModel.DesignerSerializationVisibility.Hidden)> _
Public Shadows ReadOnly Property Relations() As System.Data.DataRelationCollection
Get
Return MyBase.Relations
End Get
End Property
<System.ComponentModel.DefaultValueAttribute(false)> _
Public Shadows Property EnforceConstraints() As Boolean
Get
Return MyBase.EnforceConstraints
End Get
Set
MyBase.EnforceConstraints = value
End Set
End Property
Public Overrides Function Clone() As System.Data.DataSet
Dim cln As NorthwindDataSet = CType(MyBase.Clone,NorthwindDataSet)
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 System.Xml.XmlReader)
Me.Reset
Dim ds As System.Data.DataSet = New System.Data.DataSet
ds.ReadXml(reader)
If (Not (ds.Tables("Products")) Is Nothing) Then
MyBase.Tables.Add(New ProductsDataTable(ds.Tables("Products")))
End If
If (Not (ds.Tables("Suppliers")) Is Nothing) Then
MyBase.Tables.Add(New SuppliersDataTable(ds.Tables("Suppliers")))
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 System.Xml.XmlTextWriter(stream, Nothing))
stream.Position = 0
Return System.Xml.Schema.XmlSchema.Read(New System.Xml.XmlTextReader(stream), Nothing)
End Function
Friend Overloads Sub InitVars()
Me.InitVars(true)
End Sub
Friend Overloads Sub InitVars(ByVal initTable As Boolean)
Me.tableProducts = CType(MyBase.Tables("Products"),ProductsDataTable)
If (initTable = true) Then
If (Not (Me.tableProducts) Is Nothing) Then
Me.tableProducts.InitVars
End If
End If
Me.tableSuppliers = CType(MyBase.Tables("Suppliers"),SuppliersDataTable)
If (initTable = true) Then
If (Not (Me.tableSuppliers) Is Nothing) Then
Me.tableSuppliers.InitVars
End If
End If
End Sub
Private Sub InitClass()
Me.DataSetName = "NorthwindDataSet"
Me.Prefix = ""
Me.Namespace = "http://tempuri.org/NorthwindDataSet.xsd"
Me.Locale = New System.Globalization.CultureInfo("en-US")
Me.CaseSensitive = false
Me.EnforceConstraints = false
Me.tableProducts = New ProductsDataTable
MyBase.Tables.Add(Me.tableProducts)
Me.tableSuppliers = New SuppliersDataTable
MyBase.Tables.Add(Me.tableSuppliers)
Me.ExtendedProperties.Add("DSGenerator_DataSetName", "NorthwindDataSet")
Me.ExtendedProperties.Add("User_DataSetName", "NorthwindDataSet")
End Sub
Private Function ShouldSerializeProducts() As Boolean
Return false
End Function
Private Function ShouldSerializeSuppliers() 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 Shared Function GetTypedDataSetSchema(ByVal xs As System.Xml.Schema.XmlSchemaSet) As System.Xml.Schema.XmlSchemaComplexType
Dim ds As NorthwindDataSet = New NorthwindDataSet
Dim type As System.Xml.Schema.XmlSchemaComplexType = New System.Xml.Schema.XmlSchemaComplexType
Dim sequence As System.Xml.Schema.XmlSchemaSequence = New System.Xml.Schema.XmlSchemaSequence
xs.Add(ds.GetSchemaSerializable)
If PublishLegacyWSDL Then
Dim any As System.Xml.Schema.XmlSchemaAny = New System.Xml.Schema.XmlSchemaAny
any.Namespace = ds.Namespace
sequence.Items.Add(any)
Else
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.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(0)
any2.ProcessContents = System.Xml.Schema.XmlSchemaContentProcessing.Lax
sequence.Items.Add(any2)
sequence.MaxOccurs = Decimal.MaxValue
Dim attribute As System.Xml.Schema.XmlSchemaAttribute = New System.Xml.Schema.XmlSchemaAttribute
attribute.Name = "namespace"
attribute.FixedValue = ds.Namespace
type.Attributes.Add(attribute)
End If
type.Particle = sequence
Return type
End Function
Protected Shared Function PublishLegacyWSDL() As Boolean
Dim settings As System.Collections.Specialized.NameValueCollection = CType(System.Configuration.ConfigurationSettings.GetConfig("system.data.dataset"),System.Collections.Specialized.NameValueCollection)
If (Not (settings) Is Nothing) Then
Dim values() As String = settings.GetValues("WSDL_VERSION")
If (Not (values) Is Nothing) Then
Dim version As Single = Single.Parse(CType(values(0),String), CType(Nothing,System.IFormatProvider))
Return (version < 2)
End If
End If
Return true
End Function
Public Delegate Sub ProductsRowChangeEventHandler(ByVal sender As Object, ByVal e As ProductsRowChangeEvent)
Public Delegate Sub SuppliersRowChangeEventHandler(ByVal sender As Object, ByVal e As SuppliersRowChangeEvent)
<System.Serializable(), _
System.Xml.Serialization.XmlSchemaProviderAttribute("GetTypedTableSchema")> _
Partial Public Class ProductsDataTable
Inherits System.Data.DataTable
Implements System.Collections.IEnumerable
Private columnProductID As System.Data.DataColumn
Private columnProductName As System.Data.DataColumn
Private columnSupplierID As System.Data.DataColumn
Private columnCategoryID As System.Data.DataColumn
Private columnQuantityPerUnit As System.Data.DataColumn
Private columnUnitPrice As System.Data.DataColumn
Private columnUnitsInStock As System.Data.DataColumn
Private columnUnitsOnOrder As System.Data.DataColumn
Private columnReorderLevel As System.Data.DataColumn
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