Programmatically adding a commandbutton to a userform - vba

Question

In excel vba I have added a commandbutton to userform... like below
Set ctrl = Me.Controls.Add( _
bstrProgID:="Forms.CommandButton.1", _
Name:="CommandButton1", Visible:=True)
Now I wanted to know how would I tell it what to do when it is clicked?

Answer 1

This is one of those techniques that vba will let you do, but you probably shouldn't. For all the same reasons you shouldn't use code that alters your code.
That said, here is how to do what you want. First insert a class module and name it DynBtn, then paste this code into it:
Private WithEvents mobjBtn As MSForms.CommandButton
Private msOnAction As String
''// This has to be generic or call by name won't be able to find the methods
''// in your form.
Private mobjParent As Object
Public Property Get Object() As MSForms.CommandButton
Set Object = mobjBtn
End Property
Public Function Load(ByVal parentFormName As Object, ByVal btn As MSForms.CommandButton, ByVal procedure As String) As DynBtn
Set mobjParent = parentFormName
Set mobjBtn = btn
msOnAction = procedure
Set Load = Me
End Function
Private Sub Class_Terminate()
Set mobjParent = Nothing
Set mobjBtn = Nothing
End Sub
Private Sub mobjBtn_Click()
CallByName mobjParent, msOnAction, VbMethod
End Sub
Now to use this in your form, create a blank user form and paste this code into it:
Private Const mcsCmdBtn As String = "Forms.CommandButton.1"
Private mBtn() As DynBtn
Private Sub UserForm_Initialize()
Dim i As Long
ReDim mBtn(1) As DynBtn
For i = 0 To UBound(mBtn)
Set mBtn(i) = New DynBtn
Next
''// One Liner
mBtn(0).Load(Me, Me.Controls.Add(mcsCmdBtn, "Btn1", True), "DoSomething").Object.Caption = "Test 1"
''// Or using with block.
With mBtn(1).Load(Me, Me.Controls.Add(mcsCmdBtn, "Btn2", True), "DoSomethingElse").Object
.Caption = "Test 2"
.Top = .Height + 10
End With
End Sub
Public Sub DoSomething()
MsgBox "It Worked!"
End Sub
Public Sub DoSomethingElse()
MsgBox "Yay!"
End Sub
Private Sub UserForm_Terminate()
Erase mBtn
End Sub