ds1.vb

一个功能强大的学生公寓管理系统 界面非常友好 十分强大

        End Property
        
        Public Property 班级 As String
            Get
                Try 
                    Return CType(Me(Me.table住宿登记.班级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住宿登记.班级Column) = value
            End Set
        End Property
        
        Public Property 宿舍电话 As String
            Get
                Try 
                    Return CType(Me(Me.table住宿登记.宿舍电话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住宿登记.宿舍电话Column) = value
            End Set
        End Property
        
        Public Function Is栋号Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.栋号Column)
        End Function
        
        Public Sub Set栋号Null()
            Me(Me.table住宿登记.栋号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is房号Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.房号Column)
        End Function
        
        Public Sub Set房号Null()
            Me(Me.table住宿登记.房号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is床号Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.床号Column)
        End Function
        
        Public Sub Set床号Null()
            Me(Me.table住宿登记.床号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is类别Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.类别Column)
        End Function
        
        Public Sub Set类别Null()
            Me(Me.table住宿登记.类别Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is学号Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.学号Column)
        End Function
        
        Public Sub Set学号Null()
            Me(Me.table住宿登记.学号Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is姓名Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.姓名Column)
        End Function
        
        Public Sub Set姓名Null()
            Me(Me.table住宿登记.姓名Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is院系Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.院系Column)
        End Function
        
        Public Sub Set院系Null()
            Me(Me.table住宿登记.院系Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is专业Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.专业Column)
        End Function
        
        Public Sub Set专业Null()
            Me(Me.table住宿登记.专业Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is班级Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.班级Column)
        End Function
        
        Public Sub Set班级Null()
            Me(Me.table住宿登记.班级Column) = System.Convert.DBNull
        End Sub
        
        Public Function Is宿舍电话Null() As Boolean
            Return Me.IsNull(Me.table住宿登记.宿舍电话Column)
        End Function
        
        Public Sub Set宿舍电话Null()
            Me(Me.table住宿登记.宿舍电话Column) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 住宿登记RowChangeEvent
        Inherits EventArgs
        
        Private eventRow As 住宿登记Row
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As 住宿登记Row, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As 住宿登记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 住宿统计DataTable
        Inherits DataTable
        Implements System.Collections.IEnumerable
        
        Private column栋号 As DataColumn
        
        Private column房号 As DataColumn
        
        Private column已住床位 As DataColumn
        
        Private column剩余床位 As DataColumn
        
        Private column总床位 As DataColumn
        
        Friend Sub New()
            MyBase.New("住宿统计")
            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 栋号Column As DataColumn
            Get
                Return Me.column栋号
            End Get
        End Property
        
        Friend ReadOnly Property 房号Column As DataColumn
            Get
                Return Me.column房号
            End Get
        End Property
        
        Friend ReadOnly Property 已住床位Column As DataColumn
            Get
                Return Me.column已住床位
            End Get
        End Property
        
        Friend ReadOnly Property 剩余床位Column As DataColumn
            Get
                Return Me.column剩余床位
            End Get
        End Property
        
        Friend ReadOnly Property 总床位Column As DataColumn
            Get
                Return Me.column总床位
            End Get
        End Property
        
        Public Default ReadOnly Property Item(ByVal index As Integer) As 住宿统计Row
            Get
                Return CType(Me.Rows(index),住宿统计Row)
            End Get
        End Property
        
        Public Event 住宿统计RowChanged As 住宿统计RowChangeEventHandler
        
        Public Event 住宿统计RowChanging As 住宿统计RowChangeEventHandler
        
        Public Event 住宿统计RowDeleted As 住宿统计RowChangeEventHandler
        
        Public Event 住宿统计RowDeleting As 住宿统计RowChangeEventHandler
        
        Public Overloads Sub Add住宿统计Row(ByVal row As 住宿统计Row)
            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function Add住宿统计Row(ByVal 栋号 As String, ByVal 房号 As String, ByVal 已住床位 As Integer, ByVal 剩余床位 As String, ByVal 总床位 As Integer) As 住宿统计Row
            Dim row住宿统计Row As 住宿统计Row = CType(Me.NewRow,住宿统计Row)
            row住宿统计Row.ItemArray = New Object() {栋号, 房号, 已住床位, 剩余床位, 总床位}
            Me.Rows.Add(row住宿统计Row)
            Return row住宿统计Row
        End Function
        
        Public Function FindBy栋号房号(ByVal 栋号 As String, ByVal 房号 As String) As 住宿统计Row
            Return CType(Me.Rows.Find(New Object() {栋号, 房号}),住宿统计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 住宿统计DataTable = CType(MyBase.Clone,住宿统计DataTable)
            cln.InitVars
            Return cln
        End Function
        
        Protected Overrides Function CreateInstance() As DataTable
            Return New 住宿统计DataTable
        End Function
        
        Friend Sub InitVars()
            Me.column栋号 = Me.Columns("栋号")
            Me.column房号 = Me.Columns("房号")
            Me.column已住床位 = Me.Columns("已住床位")
            Me.column剩余床位 = Me.Columns("剩余床位")
            Me.column总床位 = Me.Columns("总床位")
        End Sub
        
        Private Sub InitClass()
            Me.column栋号 = New DataColumn("栋号", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column栋号)
            Me.column房号 = New DataColumn("房号", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column房号)
            Me.column已住床位 = New DataColumn("已住床位", GetType(System.Int32), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column已住床位)
            Me.column剩余床位 = New DataColumn("剩余床位", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column剩余床位)
            Me.column总床位 = New DataColumn("总床位", GetType(System.Int32), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.column总床位)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.column栋号, Me.column房号}, true))
            Me.column栋号.AllowDBNull = false
            Me.column房号.AllowDBNull = false
        End Sub
        
        Public Function New住宿统计Row() As 住宿统计Row
            Return CType(Me.NewRow,住宿统计Row)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New 住宿统计Row(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(住宿统计Row)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.住宿统计RowChangedEvent) Is Nothing) Then
                RaiseEvent 住宿统计RowChanged(Me, New 住宿统计RowChangeEvent(CType(e.Row,住宿统计Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.住宿统计RowChangingEvent) Is Nothing) Then
                RaiseEvent 住宿统计RowChanging(Me, New 住宿统计RowChangeEvent(CType(e.Row,住宿统计Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.住宿统计RowDeletedEvent) Is Nothing) Then
                RaiseEvent 住宿统计RowDeleted(Me, New 住宿统计RowChangeEvent(CType(e.Row,住宿统计Row), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.住宿统计RowDeletingEvent) Is Nothing) Then
                RaiseEvent 住宿统计RowDeleting(Me, New 住宿统计RowChangeEvent(CType(e.Row,住宿统计Row), e.Action))
            End If
        End Sub
        
        Public Sub Remove住宿统计Row(ByVal row As 住宿统计Row)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class 住宿统计Row
        Inherits DataRow
        
        Private table住宿统计 As 住宿统计DataTable