dataset1.vb

数据库课程设计。

            Get
                Try 
                    Return CType(Me(Me.table读者信息.姓名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读者信息.姓名Column) = value
            End Set
        End Property
        
        Public Property 性别 As String
            Get
                Try 
                    Return CType(Me(Me.table读者信息.性别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读者信息.性别Column) = value
            End Set
        End Property
        
        Public Property 类型 As String
            Get
                Return CType(Me(Me.table读者信息.类型Column),String)
            End Get
            Set
                Me(Me.table读者信息.类型Column) = value
            End Set
        End Property
        
        Public Property 有效证件 As String
            Get
                Try 
                    Return CType(Me(Me.table读者信息.有效证件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读者信息.有效证件Column) = value
            End Set
        End Property
        
        Public Property 证件号码 As String
            Get
                Try 
                    Return CType(Me(Me.table读者信息.证件号码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读者信息.证件号码Column) = value
            End Set
        End Property
        
        Public Property 联系方式 As String
            Get
                Try 
                    Return CType(Me(Me.table读者信息.联系方式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读者信息.联系方式Column) = value
            End Set
        End Property
        
        Public Property 登记日期 As Date
            Get
                Try 
                    Return CType(Me(Me.table读者信息.登记日期Column),Date)
                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读者信息.登记日期Column) = value
            End Set
        End Property
        
        Public Property 有限期至 As Date
            Get
                Try 
                    Return CType(Me(Me.table读者信息.有限期至Column),Date)
                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读者信息.有限期至Column) = value
            End Set
        End Property
        
        Public Property 是否挂失 As Boolean
            Get
                Return CType(Me(Me.table读者信息.是否挂失Column),Boolean)
            End Get
            Set
                Me(Me.table读者信息.是否挂失Column) = value
            End Set
        End Property
        
        Public Property 图书借阅次数 As Integer
            Get
                Try 
                    Return CType(Me(Me.table读者信息.图书借阅次数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读者信息.图书借阅次数Column) = value
            End Set
        End Property
        
        Public Property 期刊借阅次数 As Integer
            Get
                Try 
                    Return CType(Me(Me.table读者信息.期刊借阅次数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读者信息.期刊借阅次数Column) = value
            End Set
        End Property
        
        Public Property 操作员 As String
            Get
                Try 
                    Return CType(Me(Me.table读者信息.操作员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读者信息.操作员Column) = value
            End Set
        End Property
        
        Public Property 出生日期 As Date
            Get
                Try 
                    Return CType(Me(Me.table读者信息.出生日期Column),Date)
                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读者信息.出生日期Column) = value
            End Set
        End Property
        
        Public Property 备注 As String
            Get
                Try 
                    Return CType(Me(Me.table读者信息.备注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读者信息.备注Column) = value
            End Set
        End Property
        
        Public Function Is条形码Null() As Boolean
            Return Me.IsNull(Me.table读者信息.条形码Column)
        End Function
        
        Public Sub Set条形码Null()
            Me(Me.table读者信息.条形码Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is姓名Null() As Boolean
            Return Me.IsNull(Me.table读者信息.姓名Column)
        End Function
        
        Public Sub Set姓名Null()
            Me(Me.table读者信息.姓名Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is性别Null() As Boolean
            Return Me.IsNull(Me.table读者信息.性别Column)
        End Function
        
        Public Sub Set性别Null()
            Me(Me.table读者信息.性别Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is有效证件Null() As Boolean
            Return Me.IsNull(Me.table读者信息.有效证件Column)
        End Function
        
        Public Sub Set有效证件Null()
            Me(Me.table读者信息.有效证件Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is证件号码Null() As Boolean
            Return Me.IsNull(Me.table读者信息.证件号码Column)
        End Function
        
        Public Sub Set证件号码Null()
            Me(Me.table读者信息.证件号码Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is联系方式Null() As Boolean
            Return Me.IsNull(Me.table读者信息.联系方式Column)
        End Function
        
        Public Sub Set联系方式Null()
            Me(Me.table读者信息.联系方式Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is登记日期Null() As Boolean
            Return Me.IsNull(Me.table读者信息.登记日期Column)
        End Function
        
        Public Sub Set登记日期Null()
            Me(Me.table读者信息.登记日期Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is有限期至Null() As Boolean
            Return Me.IsNull(Me.table读者信息.有限期至Column)
        End Function
        
        Public Sub Set有限期至Null()
            Me(Me.table读者信息.有限期至Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is图书借阅次数Null() As Boolean
            Return Me.IsNull(Me.table读者信息.图书借阅次数Column)
        End Function
        
        Public Sub Set图书借阅次数Null()
            Me(Me.table读者信息.图书借阅次数Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is期刊借阅次数Null() As Boolean
            Return Me.IsNull(Me.table读者信息.期刊借阅次数Column)
        End Function
        
        Public Sub Set期刊借阅次数Null()
            Me(Me.table读者信息.期刊借阅次数Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is操作员Null() As Boolean
            Return Me.IsNull(Me.table读者信息.操作员Column)
        End Function
        
        Public Sub Set操作员Null()
            Me(Me.table读者信息.操作员Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is出生日期Null() As Boolean
            Return Me.IsNull(Me.table读者信息.出生日期Column)
        End Function
        
        Public Sub Set出生日期Null()
            Me(Me.table读者信息.出生日期Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is备注Null() As Boolean
            Return Me.IsNull(Me.table读者信息.备注Column)
        End Function
        
        Public Sub Set备注Null()
            Me(Me.table读者信息.备注Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 读者信息RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As 读者信息Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As 读者信息Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As 读者信息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 图书类型DataTable
        Inherits DataTable
        Implements System.Collections.IEnumerable
        
        Private column类型编号 As DataColumn
        
        Private column类型名称 As DataColumn
        
        Private column可借天数 As DataColumn
        
        Friend Sub New()
            MyBase.New("图书类型")