Question

我希望下面的代码执行以下操作：

在特定列中输入值之后，计算一些东西，并为这些值分配单元格值

问题：

我将值分配给另一个单元格后，Worksheet.Change事件将再次触发，这将重新启动子级并导致无限循环

如何更改代码以使其不会陷入无限循环，并且每当我向要使用的列添加值时，我要更新的单元格就会自动更新？

代码-我要为其添加值的列是列C：

Public Sub Worksheet_Change(ByVal Target As Range)
    Dim xlApp As Application
    Dim ws As Worksheet
    Dim r As Range
    Dim size As Long

    Set xlApp = Excel.Application
    Set ws = xlApp.ThisWorkbook.Worksheets("Sheet1")

    'get length of this individual column
    Set r = ws.Range(ws.Cells(2, 3), ws.Cells(ws.Rows.Count, 3).End(xlUp))
    'test to see if I got the correct column: i do
    r.Select
    size = r.Count

    With xlApp.WorksheetFunction
        'test to see if the offset I got was correct: it is
        r.Offset(0, 1).Select
        'get average of big range
        ws.Cells(3, 10).Value = .Average(r.Offset(0, 1)) ' <- here is where the change event will fire again
                                                         '    presumably because i just changed a value.
        'get standard deviation of big range's population
        ws.Cells(3, 11).Value = .StDev_P(r.Offset(0, 1))
        'test to see if the offset i got was correct: it is
        r.Offset(0, 2).Select
        ws.Cells(3, 12).Value = .Average(r.Offset(0, 2))
        ws.Cells(3, 13).Value = .StDev_P(r.Offset(0, 2))
    End With

    Set xlApp = Nothing
    Set ws = Nothing
    Set r = Nothing
End Sub

感谢阅读！

Answer 1

在工作表上进行任何更改之前，请禁用Events。每次更改都会[重新]激活宏，并四处循环运行系统，直到您的excel实例崩溃...

Application.EnableEvents = False
    'Changes go here
Application.EnableEvents = True

工作表更改事件陷入无限循环

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