Excel VBA-验证数据和逗号分隔的字符串 [英] Excel VBA - Validation Data and comma delimited strings

问题描述

我试图仅使用VBA创建数据验证单元.问题是，如果其中之一 验证列表中的项目是一个Excel公式，其中包含逗号(例如以下代码中的IF())，将生成错误.

I am trying to create data validation cells purely with VBA. The problem is, if one of the items in the validated list is a Excel formula which contains commas (such as the IF() in the following code) an error is generated.

 Dim str As String
 str = "=IF(SUM(A1:A2) = 0, ""Zero"", SUM(A1:A2)) , Item 2 , Item 3 , Item 4"

 s1.Range("B6").Validation.Add Type:=xlValidateList, _
          AlertStyle:=xlValidAlertStop, Operator:=xlBetween, Formula1:=str

生成错误(运行时错误1004)是因为它在第一个逗号处定界了字符串，因此验证的第一项是"=IF(SUM(A1:A2) = 0".我希望逗号可以有转义字符(例如C中的\)，以避免出现这种情况. 我希望经过验证的列表显示为这样:

The error (runtime error 1004) is generated because it delimits the string at the first comma, so the first item of the validation is "=IF(SUM(A1:A2) = 0". I'm hoping there are escape characters for the commas (such as \ in C) to avoid this. I want the validated list to appear as such:

<result of IF() function>
Item 2
Item 3
Item 4

注意:我不能使用范围来验证数据.如果用户删除了范围，则电子表格将被破坏.

Note: I CANNOT use a range for the validated data. If the user deleted the range the spreadsheet would be broken.

推荐答案

当单元格A1或A2发生更改时，如何通过WorkSheet_Change事件重置数据验证?

How about a WorkSheet_Change event to reset the data validation when cells A1 or A2 change?

Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Dim ValidationString As String
Dim rngChanging As Excel.Range
Dim rngWithValidation As Excel.Range

Set rngChanging = Range("A1:A2")
Set rngWithValidation = Range("B6")
If Not Intersect(Target, rngChanging) Is Nothing Then
    With rngWithValidation
        .Validation.Delete
        If WorksheetFunction.Sum(rngChanging) = 0 Then
            ValidationString = "0"
        Else
            ValidationString = WorksheetFunction.Sum(rngChanging)
        End If
        ValidationString = ValidationString & ",Item2,Item3,Item4"
        .Validation.Add Type:=xlValidateList, Formula1:=ValidationString
    End With
End If
End Sub

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