dataset1.vb

数据库课程设计。

            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 类型编号Column As DataColumn
            Get
                Return Me.column类型编号
            End Get
        End Property
        
        Friend ReadOnly Property 类型名称Column As DataColumn
            Get
                Return Me.column类型名称
            End Get
        End Property
        
        Friend ReadOnly Property 可借天数Column As DataColumn
            Get
                Return Me.column可借天数
            End Get
        End Property
        
        Public Default ReadOnly Property Item(ByVal index As Integer) As 图书类型Row
            Get
                Return CType(Me.Rows(index),图书类型Row)
            End Get
        End Property
        
        Public Event 图书类型RowChanged As 图书类型RowChangeEventHandler
        
        Public Event 图书类型RowChanging As 图书类型RowChangeEventHandler
        
        Public Event 图书类型RowDeleted As 图书类型RowChangeEventHandler
        
        Public Event 图书类型RowDeleting As 图书类型RowChangeEventHandler
        
        Public Overloads Sub Add图书类型Row(ByVal row As 图书类型Row)
            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function Add图书类型Row(ByVal 类型编号 As String, ByVal 类型名称 As String, ByVal 可借天数 As Integer) As 图书类型Row
            Dim row图书类型Row As 图书类型Row = CType(Me.NewRow,图书类型Row)
            row图书类型Row.ItemArray = New Object() {类型编号, 类型名称, 可借天数}
            Me.Rows.Add(row图书类型Row)
            Return row图书类型Row
        End Function
        
        Public Function FindBy类型编号(ByVal 类型编号 As String) As 图书类型Row
            Return CType(Me.Rows.Find(New Object() {类型编号}),图书类型Row)
        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 图书类型DataTable = CType(MyBase.Clone,图书类型DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New 图书类型DataTable
        End Function
        
        Friend Sub InitVars()
            Me.column类型编号 = Me.Columns("类型编号")
            Me.column类型名称 = Me.Columns("类型名称")
            Me.column可借天数 = Me.Columns("可借天数")
        End Sub
        
        Private Sub InitClass()
            Me.column类型编号 = New DataColumn("类型编号", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column类型编号)
            Me.column类型名称 = New DataColumn("类型名称", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column类型名称)
            Me.column可借天数 = New DataColumn("可借天数", GetType(System.Int32), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column可借天数)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.column类型编号}, true))
            Me.column类型编号.AllowDBNull = false
            Me.column类型编号.Unique = true
        End Sub
        
        Public Function New图书类型Row() As 图书类型Row
            Return CType(Me.NewRow,图书类型Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New 图书类型Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(图书类型Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.图书类型RowChangedEvent) Is Nothing) Then
                RaiseEvent 图书类型RowChanged(Me, New 图书类型RowChangeEvent(CType(e.Row,图书类型Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.图书类型RowChangingEvent) Is Nothing) Then
                RaiseEvent 图书类型RowChanging(Me, New 图书类型RowChangeEvent(CType(e.Row,图书类型Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.图书类型RowDeletedEvent) Is Nothing) Then
                RaiseEvent 图书类型RowDeleted(Me, New 图书类型RowChangeEvent(CType(e.Row,图书类型Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.图书类型RowDeletingEvent) Is Nothing) Then
                RaiseEvent 图书类型RowDeleting(Me, New 图书类型RowChangeEvent(CType(e.Row,图书类型Row), e.Action))
            End If
        End Sub
        
        Public Sub Remove图书类型Row(ByVal row As 图书类型Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 图书类型Row
        Inherits DataRow
        
        Private table图书类型 As 图书类型DataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.table图书类型 = CType(Me.Table,图书类型DataTable)
        End Sub
        
        Public Property 类型编号 As String
            Get
                Return CType(Me(Me.table图书类型.类型编号Column),String)
            End Get
            Set
                Me(Me.table图书类型.类型编号Column) = value
            End Set
        End Property
        
        Public Property 类型名称 As String
            Get
                Try 
                    Return CType(Me(Me.table图书类型.类型名称Column),String)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.table图书类型.类型名称Column) = value
            End Set
        End Property
        
        Public Property 可借天数 As Integer
            Get
                Try 
                    Return CType(Me(Me.table图书类型.可借天数Column),Integer)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("无法获取值，因为它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.table图书类型.可借天数Column) = value
            End Set
        End Property
        
        Public Function Is类型名称Null() As Boolean
            Return Me.IsNull(Me.table图书类型.类型名称Column)
        End Function
        
        Public Sub Set类型名称Null()
            Me(Me.table图书类型.类型名称Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is可借天数Null() As Boolean
            Return Me.IsNull(Me.table图书类型.可借天数Column)
        End Function
        
        Public Sub Set可借天数Null()
            Me(Me.table图书类型.可借天数Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 图书类型RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As 图书类型Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As 图书类型Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As 图书类型Row
            Get
                Return Me.eventRow
            End Get
        End Property
        
        Public ReadOnly Property Action As DataRowAction
            Get
                Return Me.eventAction
            End Get
        End Property
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 图书征订DataTable
        Inherits DataTable
        Implements System.Collections.IEnumerable
        
        Private column征订编号 As DataColumn
        
        Private column图书编号 As DataColumn
        
        Private column订购者 As DataColumn
        
        Private column订购数量 As DataColumn
        
        Private column订购单价 As DataColumn
        
        Private column订购日期 As DataColumn
        
        Private column订购者联系方式 As DataColumn
        
        Private column操作员 As DataColumn
        
        Private column是否验收 As DataColumn
        
        Private column验收日期 As DataColumn
        
        Friend Sub New()
            MyBase.New("图书征订")
            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 征订编号Column As DataColumn
            Get
                Return Me.column征订编号
            End Get
        End Property
        
        Friend ReadOnly Property 图书编号Column As DataColumn
            Get
                Return Me.column图书编号
            End Get
        End Property
        
        Friend ReadOnly Property 订购者Column As DataColumn
            Get
                Return Me.column订购者
            End Get
        End Property
        
        Friend ReadOnly Property 订购数量Column As DataColumn
            Get
                Return Me.column订购数量
            End Get
        End Property
        
        Friend ReadOnly Property 订购单价Column As DataColumn