dataset1.vb

个人图书管理系统 一个VB开发的很好的图书信息管理系统,在学校的毕业

            Dim cln As booksDataTable = CType(MyBase.Clone,booksDataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New booksDataTable
        End Function
        
        Friend Sub InitVars()
            Me.columnAuthor = Me.Columns("Author")
            Me.columnBookName = Me.Columns("BookName")
            Me.columnISBN = Me.Columns("ISBN")
            Me.columnPress = Me.Columns("Press")
            Me.columnPrice = Me.Columns("Price")
            Me.columnSheftName = Me.Columns("SheftName")
            Me.column编号 = Me.Columns("编号")
        End Sub
        
        Private Sub InitClass()
            Me.columnAuthor = New DataColumn("Author", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnAuthor)
            Me.columnBookName = New DataColumn("BookName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnBookName)
            Me.columnISBN = New DataColumn("ISBN", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnISBN)
            Me.columnPress = New DataColumn("Press", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPress)
            Me.columnPrice = New DataColumn("Price", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPrice)
            Me.columnSheftName = New DataColumn("SheftName", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnSheftName)
            Me.column编号 = New DataColumn("编号", GetType(System.Int32), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column编号)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.column编号}, true))
            Me.column编号.AutoIncrement = true
            Me.column编号.AllowDBNull = false
            Me.column编号.Unique = true
        End Sub
        
        Public Function NewbooksRow() As booksRow
            Return CType(Me.NewRow,booksRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New booksRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(booksRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.booksRowChangedEvent) Is Nothing) Then
                RaiseEvent booksRowChanged(Me, New booksRowChangeEvent(CType(e.Row,booksRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.booksRowChangingEvent) Is Nothing) Then
                RaiseEvent booksRowChanging(Me, New booksRowChangeEvent(CType(e.Row,booksRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.booksRowDeletedEvent) Is Nothing) Then
                RaiseEvent booksRowDeleted(Me, New booksRowChangeEvent(CType(e.Row,booksRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.booksRowDeletingEvent) Is Nothing) Then
                RaiseEvent booksRowDeleting(Me, New booksRowChangeEvent(CType(e.Row,booksRow), e.Action))
            End If
        End Sub
        
        Public Sub RemovebooksRow(ByVal row As booksRow)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class booksRow
        Inherits DataRow
        
        Private tablebooks As booksDataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tablebooks = CType(Me.Table,booksDataTable)
        End Sub
        
        Public Property Author As String
            Get
                Try 
                    Return CType(Me(Me.tablebooks.AuthorColumn),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.tablebooks.AuthorColumn) = value
            End Set
        End Property
        
        Public Property BookName As String
            Get
                Try 
                    Return CType(Me(Me.tablebooks.BookNameColumn),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.tablebooks.BookNameColumn) = value
            End Set
        End Property
        
        Public Property ISBN As String
            Get
                Try 
                    Return CType(Me(Me.tablebooks.ISBNColumn),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.tablebooks.ISBNColumn) = value
            End Set
        End Property
        
        Public Property Press As String
            Get
                Try 
                    Return CType(Me(Me.tablebooks.PressColumn),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.tablebooks.PressColumn) = value
            End Set
        End Property
        
        Public Property Price As String
            Get
                Try 
                    Return CType(Me(Me.tablebooks.PriceColumn),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.tablebooks.PriceColumn) = value
            End Set
        End Property
        
        Public Property SheftName As String
            Get
                Try 
                    Return CType(Me(Me.tablebooks.SheftNameColumn),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.tablebooks.SheftNameColumn) = value
            End Set
        End Property
        
        Public Property 编号 As Integer
            Get
                Return CType(Me(Me.tablebooks.编号Column),Integer)
            End Get
            Set
                Me(Me.tablebooks.编号Column) = value
            End Set
        End Property
        
        Public Function IsAuthorNull() As Boolean
            Return Me.IsNull(Me.tablebooks.AuthorColumn)
        End Function
        
        Public Sub SetAuthorNull()
            Me(Me.tablebooks.AuthorColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsBookNameNull() As Boolean
            Return Me.IsNull(Me.tablebooks.BookNameColumn)
        End Function
        
        Public Sub SetBookNameNull()
            Me(Me.tablebooks.BookNameColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsISBNNull() As Boolean
            Return Me.IsNull(Me.tablebooks.ISBNColumn)
        End Function
        
        Public Sub SetISBNNull()
            Me(Me.tablebooks.ISBNColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsPressNull() As Boolean
            Return Me.IsNull(Me.tablebooks.PressColumn)
        End Function
        
        Public Sub SetPressNull()
            Me(Me.tablebooks.PressColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsPriceNull() As Boolean
            Return Me.IsNull(Me.tablebooks.PriceColumn)
        End Function
        
        Public Sub SetPriceNull()
            Me(Me.tablebooks.PriceColumn) = System.Convert.DBNull
        End Sub
        
        Public Function IsSheftNameNull() As Boolean
            Return Me.IsNull(Me.tablebooks.SheftNameColumn)
        End Function
        
        Public Sub SetSheftNameNull()
            Me(Me.tablebooks.SheftNameColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class booksRowChangeEvent
        Inherits EventArgs
        
        Private eventRow As booksRow
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As booksRow, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As booksRow
            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