events - 处理在运行时创建的 OLEObject 命令按钮的事件

Question

我已经为这个问题苦苦挣扎了一段时间......我想做一些非常简单的事情。我想在运行时创建多个命令按钮，然后用一个过程处理这些命令按钮的事件。所以我建立了一个“withevents”类来处理自动化，但我的代码不起作用。当我运行 Test() 时，会创建命令按钮，但是当我单击它时...没有消息框响应...我找不到错误...请任何帮助都会很棒！

cTest 类

Public WithEvents Button As MSForms.CommandButton

Public Sub Button_Click()
s = MsgBox("Hello", vbOKOnly)
End Sub

模块 1

Public TestCollection As Collection

Sub Test()

Set TestCollection = New Collection
Dim Btn As CommandButton
Dim OLEBtnObj As cTest
Set OLEBtnObj = New cTest
Set Btn = Sheet1.OLEObjects.Add(ClassType:="Forms.CommandButton.1", link:=False,_ DisplayAsIcon:=False, Left:=368.25, Top:=51, Width:=44.25, Height:=24).Object
Set OLEBtnObj.Button = Btn
TestCollection.Add Item:=OLEBtnObj

End Sub

Answer 1

我有一个相当不切实际的解决方案。要对其进行测试，请将以下代码放在工作表类模块中（参见附图）。Me.CodeName是指工作表的代码名称。

对于每个新的 Sheet1 按钮，将添加一个处理的新事件。此事件处理程序将执行公共事件处理程序并将单击的命令按钮的名称传递给它。

' Standard Module
Sub test()
  ' adds three buttons to Sheet1 with click-event handlers
  Sheet1.AddButton
  ActiveCell.Offset(5, 0).Activate
  Sheet1.AddButton
  ActiveCell.Offset(5, 0).Activate
  Sheet1.AddButton
End Sub

' Sheet1 Class Module
Option Explicit

' Add Microsoft Visual Basic For Applications Extensibility

Public Function AddButton() As MSForms.CommandButton
  Dim msFormsCommandButton As MSForms.CommandButton
  Set msFormsCommandButton = Me.OLEObjects.Add(ClassType:="Forms.CommandButton.1").Object
  CreateEventHandler msFormsCommandButton.Name
  Set AddButton = msFormsCommandButton
End Function

Private Sub CommonButton_Click(ByVal buttonName As String)
  MsgBox "You clicked button [" & buttonName & "]"
End Sub

Private Sub CreateEventHandler(ByVal buttonName As String)
    Dim VBComp As VBIDE.VBComponent
    Dim CodeMod As VBIDE.CodeModule
    Dim codeText As String
    Dim LineNum As Long
    
    Set VBComp = ThisWorkbook.VBProject.VBComponents(Me.CodeName)
    Set CodeMod = VBComp.CodeModule
    LineNum = CodeMod.CountOfLines + 1

    codeText = codeText & "Private Sub " & buttonName & "_Click()" & vbCrLf
    codeText = codeText & "  Dim buttonName As String" & vbCrLf
    codeText = codeText & "  buttonName = """ & buttonName & "" & vbCrLf
    codeText = codeText & "  CommonButton_Click buttonName" & vbCrLf
    codeText = codeText & "End Sub"
    CodeMod.InsertLines LineNum, codeText
End Sub

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