[2005] How to determine which event has triggered a handler

[trisuglow]

Private Sub cboBuilding_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboBuilding.SelectedIndexChanged, cboBuilding.LostFocus

End Sub

What can I do in the above procedure, which handles two of a combo box's events, to determine which event has called it?