Private Sub UserForm_Initialize()
Dim v, e
With Sheets("maintenance").Range("c2:c500")
v = .Value
End With
With CreateObject("scripting.dictionary")
.comparemode = 1
For Each e In v
If Not .exists(e) Then .Add e, Nothing
Next
If .Count Then Me.ComboBox19.List = Application.Transpose(.keys)
End With
End Sub
Still looking for help on combobox population including filtering.