excel - 下拉列表中的多项选择，但排除一个单元格

Question

我正在使用 VBA 代码(我在网上找到的，我不太擅长 VBA)从下拉列表中选择多个项目。但是，我希望我的工作簿中的一个单元格(单元格 $D$3)不受此宏的影响。因此，虽然它具有数据验证功能，但您只能选择一个选项。任何帮助表示赞赏，我正在努力学习!

这是我使用的代码

Private Sub Worksheet_Change(ByVal Target As Range)
    'Updated by Extendoffice 2019/11/13
    Dim xRng As Range
    Dim xValue1 As String
    Dim xValue2 As String
    If Target.Count > 1 Then Exit Sub
    On Error Resume Next
    Set xRng = Cells.SpecialCells(xlCellTypeAllValidation)
    If xRng Is Nothing Then Exit Sub
    Application.EnableEvents = False
    If Not Application.Intersect(Target, xRng) Is Nothing Then
        xValue2 = Target.Value
        Application.Undo
        xValue1 = Target.Value
        Target.Value = xValue2
        If xValue1 <> "" Then
            If xValue2 <> "" Then
                If xValue1 = xValue2 Or _
                   InStr(1, xValue1, ", " & xValue2) Or _
                   InStr(1, xValue1, xValue2 & ",") Then
                    Target.Value = xValue1
                Else
                    Target.Value = xValue1 & ", " & xValue2
                End If
            End If
        End If
    End If
    Application.EnableEvents = True
End Sub

Answer 1

BigBen评论了一个解决我问题的答案，谢谢!

这是对我有用的修订版:

Private Sub Worksheet_Change(ByVal Target As Range)
    'Updated by Extendoffice 2019/11/13
    Dim xRng As Range
    Dim xValue1 As String
    Dim xValue2 As String
    If Target.Count > 1 Then Exit Sub
    On Error Resume Next
    If Not Intersect(Target, Me.Range("D3")) Is Nothing Then Exit Sub
    Set xRng = Cells.SpecialCells(xlCellTypeAllValidation)
    If xRng Is Nothing Then Exit Sub
    Application.EnableEvents = False
    If Not Application.Intersect(Target, xRng) Is Nothing Then
        xValue2 = Target.Value
        Application.Undo
        xValue1 = Target.Value
        Target.Value = xValue2
        If xValue1 <> "" Then
            If xValue2 <> "" Then
                If xValue1 = xValue2 Or _
                   InStr(1, xValue1, ", " & xValue2) Or _
                   InStr(1, xValue1, xValue2 & ",") Then
                    Target.Value = xValue1