for button in self.listbutton :
self.Bind(wx.EVT_BUTTON,self.OnShowList,button)
self.Bind(wx.EVT_BUTTON, self.OnApply, self.button_val)
for button in self.listbutton :
self.Bind(wx.EVT_BUTTON,self.OnShowList,button)
self.Bind(wx.EVT_BUTTON, self.OnApply, self.button_val)