excel - VBE中的ReplaceLine方法仅替换部分行

Question

回应this我认为编写一个 VBE 宏来自动替换看起来像这样的行会很有趣

DimAll a, b, c, d As Integer

由

Dim a As Integer, b As Integer, c As Integer, d As Integer

在我的初稿中，我只想修改单个选定的行。在建立适当的引用以访问 VBE 对象模型(请参阅 http://www.cpearson.com/excel/vbe.aspx )并进行一些尝试后，我想出了:

Function ExpandDim(codeLine As String) As String
    Dim fragments As Variant
    Dim i As Long, n As Long, myType As String
    Dim last As Variant
    Dim expanded As String

    If UCase(codeLine) Like "*DIMALL*AS*" Then
        codeLine = Replace(codeLine, "dimall", "Dim", , , vbTextCompare)
        fragments = Split(codeLine, ",")
        n = UBound(fragments)
        last = Split(Trim(fragments(n)))
        myType = last(UBound(last))
        For i = 0 To n - 1 'excludes last fragment
            expanded = expanded & IIf(i = 0, "", ",") & fragments(i) & " As " & myType
        Next i
        expanded = expanded & IIf(n > 0, ",", "") & fragments(n)
        ExpandDim = expanded
    Else
        ExpandDim = codeLine
    End If
End Function

Sub DimAll()
    Dim myVBE As VBE
    Dim startLine As Long, startCol As Long
    Dim endLine As Long, endCol As Long
    Dim myLine As String
    Set myVBE = Application.VBE
    myVBE.ActiveCodePane.GetSelection startLine, startCol, endLine, endCol
    myLine = myVBE.ActiveCodePane.CodeModule.Lines(startLine, 1)
    Debug.Print ExpandDim(myLine)
    myVBE.ActiveCodePane.CodeModule.ReplaceLine startLine, ExpandDim(myLine)
End Sub

在我的另一个代码模块中:

Sub test()
    DimAll a, b, c, d As Integer
    Debug.Print TypeName(a)
    Debug.Print TypeName(b)
    Debug.Print TypeName(c)
    Debug.Print TypeName(d)
End Sub

这是奇怪的部分。当我突出显示以 DimAll a 开头的行并调用我的笨拙命名的子 DimAll 时，我在立即窗口中看到

Dim a As Integer, b As Integer, c As Integer, d As Integer

这符合预期，但在代码模块本身中，该行更改为

Dim a, b, c, d As Integer

DimAll 已被 Dim 取代——但该行的其余部分未修改。我怀疑逗号混淆了 ReplaceLine 方法。关于如何解决这个问题有什么想法吗？

Answer 1

当我使用调试器运行时，myLine 会更改两个调用之间的值。 DimAll 在第二次通过时变为 Dim。

这是因为在 ExpandDim 函数 中输入主 If 条件后，您将替换 codeLine 的值。

在该函数中创建一个新变量，您应该没问题...或者传递它 ByVal 就可以了:

Function ExpandDim(ByVal codeLine As String) As String