Creating a User Form with variable number of Controls buttons

Try this:

Private Sub UserForm_Initialize()

Dim i As Long


Range("A1:A10").Sort Key1:=Range("A1"), Order1:=xlAscending, Header:=xlGuess, _
        OrderCustom:=1, MatchCase:=False, Orientation:=xlTopToBottom, _
        DataOption1:=xlSortNormal


For i = 1 To 10
If Cells(i, 1) = "" Then
    UserForm1.Controls.Item(i - 1).Visible = False
Else
    UserForm1.Controls.Item(i - 1).Visible = True
    UserForm1.Controls.Item(i - 1).Caption = Cells(i, 1).Value
End If
Next
End Sub