dsselectpurchase.vb

通用进销存-visual basic编写

            Get
                Return CType(Me.Rows(index),PurchaseMasterRow)
            End Get
        End Property
        
        Public Event PurchaseMasterRowChanged As PurchaseMasterRowChangeEventHandler
        
        Public Event PurchaseMasterRowChanging As PurchaseMasterRowChangeEventHandler
        
        Public Event PurchaseMasterRowDeleted As PurchaseMasterRowChangeEventHandler
        
        Public Event PurchaseMasterRowDeleting As PurchaseMasterRowChangeEventHandler
        
        Public Overloads Sub AddPurchaseMasterRow(ByVal row As PurchaseMasterRow)
            Me.Rows.Add(row)
        End Sub
        
        Public Overloads Function AddPurchaseMasterRow(ByVal PurchaseID As String, ByVal PurchaseDate As Date, ByVal PurchaseProperty As String, ByVal Paid As Decimal, ByVal AccountPayable As Decimal, ByVal LimitDate As Date) As PurchaseMasterRow
            Dim rowPurchaseMasterRow As PurchaseMasterRow = CType(Me.NewRow,PurchaseMasterRow)
            rowPurchaseMasterRow.ItemArray = New Object() {PurchaseID, PurchaseDate, PurchaseProperty, Paid, AccountPayable, LimitDate}
            Me.Rows.Add(rowPurchaseMasterRow)
            Return rowPurchaseMasterRow
        End Function
        
        Public Function FindByPurchaseID(ByVal PurchaseID As String) As PurchaseMasterRow
            Return CType(Me.Rows.Find(New Object() {PurchaseID}),PurchaseMasterRow)
        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 PurchaseMasterDataTable = CType(MyBase.Clone,PurchaseMasterDataTable)
            cln.InitVars
            Return cln
        End Function
        
        Friend Sub InitVars()
            Me.columnPurchaseID = Me.Columns("PurchaseID")
            Me.columnPurchaseDate = Me.Columns("PurchaseDate")
            Me.columnPurchaseProperty = Me.Columns("PurchaseProperty")
            Me.columnPaid = Me.Columns("Paid")
            Me.columnAccountPayable = Me.Columns("AccountPayable")
            Me.columnLimitDate = Me.Columns("LimitDate")
        End Sub
        
        Private Sub InitClass()
            Me.columnPurchaseID = New DataColumn("PurchaseID", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPurchaseID)
            Me.columnPurchaseDate = New DataColumn("PurchaseDate", GetType(System.DateTime), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPurchaseDate)
            Me.columnPurchaseProperty = New DataColumn("PurchaseProperty", GetType(System.String), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPurchaseProperty)
            Me.columnPaid = New DataColumn("Paid", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnPaid)
            Me.columnAccountPayable = New DataColumn("AccountPayable", GetType(System.Decimal), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnAccountPayable)
            Me.columnLimitDate = New DataColumn("LimitDate", GetType(System.DateTime), Nothing, System.Data.MappingType.Element)
            Me.Columns.Add(Me.columnLimitDate)
            Me.Constraints.Add(New UniqueConstraint("Constraint1", New DataColumn() {Me.columnPurchaseID}, true))
            Me.columnPurchaseID.AllowDBNull = false
            Me.columnPurchaseID.Unique = true
            Me.columnPurchaseDate.AllowDBNull = false
            Me.columnPurchaseProperty.AllowDBNull = false
            Me.columnPaid.AllowDBNull = false
            Me.columnAccountPayable.AllowDBNull = false
        End Sub
        
        Public Function NewPurchaseMasterRow() As PurchaseMasterRow
            Return CType(Me.NewRow,PurchaseMasterRow)
        End Function
        
        Protected Overrides Function NewRowFromBuilder(ByVal builder As DataRowBuilder) As DataRow
            Return New PurchaseMasterRow(builder)
        End Function
        
        Protected Overrides Function GetRowType() As System.Type
            Return GetType(PurchaseMasterRow)
        End Function
        
        Protected Overrides Sub OnRowChanged(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanged(e)
            If (Not (Me.PurchaseMasterRowChangedEvent) Is Nothing) Then
                RaiseEvent PurchaseMasterRowChanged(Me, New PurchaseMasterRowChangeEvent(CType(e.Row,PurchaseMasterRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowChanging(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowChanging(e)
            If (Not (Me.PurchaseMasterRowChangingEvent) Is Nothing) Then
                RaiseEvent PurchaseMasterRowChanging(Me, New PurchaseMasterRowChangeEvent(CType(e.Row,PurchaseMasterRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleted(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleted(e)
            If (Not (Me.PurchaseMasterRowDeletedEvent) Is Nothing) Then
                RaiseEvent PurchaseMasterRowDeleted(Me, New PurchaseMasterRowChangeEvent(CType(e.Row,PurchaseMasterRow), e.Action))
            End If
        End Sub
        
        Protected Overrides Sub OnRowDeleting(ByVal e As DataRowChangeEventArgs)
            MyBase.OnRowDeleting(e)
            If (Not (Me.PurchaseMasterRowDeletingEvent) Is Nothing) Then
                RaiseEvent PurchaseMasterRowDeleting(Me, New PurchaseMasterRowChangeEvent(CType(e.Row,PurchaseMasterRow), e.Action))
            End If
        End Sub
        
        Public Sub RemovePurchaseMasterRow(ByVal row As PurchaseMasterRow)
            Me.Rows.Remove(row)
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class PurchaseMasterRow
        Inherits DataRow
        
        Private tablePurchaseMaster As PurchaseMasterDataTable
        
        Friend Sub New(ByVal rb As DataRowBuilder)
            MyBase.New(rb)
            Me.tablePurchaseMaster = CType(Me.Table,PurchaseMasterDataTable)
        End Sub
        
        Public Property PurchaseID As String
            Get
                Return CType(Me(Me.tablePurchaseMaster.PurchaseIDColumn),String)
            End Get
            Set
                Me(Me.tablePurchaseMaster.PurchaseIDColumn) = value
            End Set
        End Property
        
        Public Property PurchaseDate As Date
            Get
                Return CType(Me(Me.tablePurchaseMaster.PurchaseDateColumn),Date)
            End Get
            Set
                Me(Me.tablePurchaseMaster.PurchaseDateColumn) = value
            End Set
        End Property
        
        Public Property PurchaseProperty As String
            Get
                Return CType(Me(Me.tablePurchaseMaster.PurchasePropertyColumn),String)
            End Get
            Set
                Me(Me.tablePurchaseMaster.PurchasePropertyColumn) = value
            End Set
        End Property
        
        Public Property Paid As Decimal
            Get
                Return CType(Me(Me.tablePurchaseMaster.PaidColumn),Decimal)
            End Get
            Set
                Me(Me.tablePurchaseMaster.PaidColumn) = value
            End Set
        End Property
        
        Public Property AccountPayable As Decimal
            Get
                Return CType(Me(Me.tablePurchaseMaster.AccountPayableColumn),Decimal)
            End Get
            Set
                Me(Me.tablePurchaseMaster.AccountPayableColumn) = value
            End Set
        End Property
        
        Public Property LimitDate As Date
            Get
                Try 
                    Return CType(Me(Me.tablePurchaseMaster.LimitDateColumn),Date)
                Catch e As InvalidCastException
                    Throw New StrongTypingException("無法取得值，因為它是 DBNull。", e)
                End Try
            End Get
            Set
                Me(Me.tablePurchaseMaster.LimitDateColumn) = value
            End Set
        End Property
        
        Public Function IsLimitDateNull() As Boolean
            Return Me.IsNull(Me.tablePurchaseMaster.LimitDateColumn)
        End Function
        
        Public Sub SetLimitDateNull()
            Me(Me.tablePurchaseMaster.LimitDateColumn) = System.Convert.DBNull
        End Sub
    End Class
    
    <System.Diagnostics.DebuggerStepThrough()>  _
    Public Class PurchaseMasterRowChangeEvent
        Inherits EventArgs
        
        Private eventRow As PurchaseMasterRow
        
        Private eventAction As DataRowAction
        
        Public Sub New(ByVal row As PurchaseMasterRow, ByVal action As DataRowAction)
            MyBase.New
            Me.eventRow = row
            Me.eventAction = action
        End Sub
        
        Public ReadOnly Property Row As PurchaseMasterRow
            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