使用一个事件处理程序处理多个用户窗体控件 - VBA Excel

Question

我动态创建了许多按钮（创建计划），并希望所有按钮在 Click 事件（OnClick 属性）期间都做同样的事情。

当然，我可以预先在表单上创建最大数量的按钮并将它们设置为不可见，等等，同时考虑到可能有超过一千个按钮，在他们的 Click 事件中添加“调用 SomeEvent”。这将非常乏味。

因此，简化：

我创建了新类 btnClass`

Public WithEvents ButtonEvent As MsForms.CommandButton
Private Sub ButtonEvent_Click()
    MsgBox "hey"
End Sub

然后，在我的 UserForm 中，我动态地创建按钮，我添加了这个（我也有 Collection，以便稍后删除按钮），以简化形式：

Dim btnColl As Collection
Dim Buttons As New btnClass

Set btnColl = New Collection
Set Buttons = New btnClass

For i = 0 To btnCount

         Set theButton = Controls.Add("Forms.CommandButton.1", "btn" & i, True)
         With theButton
            .Height = 17
            .Caption = "btn" & i
          End With


        Set Buttons.ButtonEvent = theButton
        btnColl.Add theButton, theButton.Name


Next i

但是当我点击动态创建的按钮时没有任何反应。我错过了什么？

---更新 ---@FaneDuru 提供了对我有用的解决方案

 ReDim Buttons(0 To btnCount, 0 To dtDiff)


For labelcounter = 0 To dtDiff 'add date labels
    Set theLabel = Controls.Add("Forms.Label.1", "lblDay" & labelcounter, True)
    With theLabel

        .Caption = VBA.Format(DateAdd("d", labelcounter, bDate), "d-mm-yy")
        .Left = 15 + 44 * labelcounter
        .BackColor = vbBlack
        .Font.Bold = True
        .ForeColor = vbWhite
        .Height = 13
        .Width = 40
        .Top = 85
    End With
    For i = 0 To btnCount 'add time buttons
        pTime = DateAdd("n", i * dur, begTime)
        Set theButton = Controls.Add("Forms.CommandButton.1", "btn" & CDate(theLabel.Caption & " " & TimeValue(pTime)), True)
        With theButton
            .Height = 17
            .Caption = VBA.Format(TimeValue(pTime), "hh:mm")
            '.Caption = CDate(theLabel.Caption & " " & TimeValue(pTime))
            .Left = 15 + 44 * labelcounter
            .BackColor = vbGreen
            .Width = 40
            .Top = 100 + 18 * i
        End With


    Set Buttons(i, labelcounter).ButtonEvent = theButton
    btnColl.Add theButton, theButton.Name



    Next i

Next labelcounter

Answer 1

这样，只为最后创建的按钮分配一个事件。你必须声明一个类数组...我还玩了一点新创建按钮的Left 属性，只是为了有可能测试它们的点击事件。请尝试下一种方法：

Option Explicit

Private btnColl As New Collection
Dim Buttons() As New btnClass

Private Sub btCreate_Click()
 Dim btnCount As Long, theButton As CommandButton, i As Long

 btnCount = 3
 ReDim Buttons(0 To btnCount)
 For i = 0 To btnCount

         Set theButton = Me.Controls.aDD("Forms.CommandButton.1", "btn" & i, True)
         With theButton
            .height = 17
            .Caption = "btn" & i
            .left = 50 * i
          End With

        btnColl.aDD theButton, theButton.Name
        Set Buttons(i).ButtonEvent = theButton
 Next i
End Sub

Private Sub btdelete_Click() 'buttons deletion...
 Dim i As Long
   For i = 1 To btnColl.count
       Me.Controls.Remove (btnColl(i).Name)
   Next
End Sub