def onClearAllBtn(self, event):
        if len(self.olv.GetObjects()) < 1:
            wx.MessageBox("Nothing to remove here", " ", wx.OK)
            return
        msg = GMD.GenericMessageDialog(None, 'Are you sure you want to delete your work?', 'Clear Everything?', wx.YES_NO | wx.ICON_WARNING |wx.NO_DEFAULT )
        value = msg.ShowModal()
        if value == wx.ID_YES:
            self._clearAll()
        return
:param event:
dataset/ETHPy150Open ODM2/ODMToolsPython/odmtools/controller/frmAddPoints.py/AddPoints.onClearAllBtn