How to invoke parent's method?

Frank Millman frank at chagford.com
Sun Jan 7 10:33:32 CET 2007


many_years_after wrote:
> Hi, pythoners:
>
>      My wxPython program includes  a panel whose parent is a frame. The
> panel has a button. When I click the button , I want to let the frame
> destroy. How to implement it? Could the panel invoke the frame's
> method?
> Thanks.

Have a look at the following program -

----------------------------------------------------------------------

class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title)
        MyPanel(self)

class MyPanel(wx.Panel):
    def __init__(self,frame):
        wx.Panel.__init__(self,frame,-1)
        self.frame = frame
        b = wx.Button(self,-1,'Close')
        b.Bind(wx.EVT_BUTTON,self.onClose,id=b.GetId())

    def onClose(self,evt):
        self.frame.Close()
        evt.Skip()

class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(None, -1, "Test")
        frame.Show(True)
        self.SetTopWindow(frame)
        return True

app = MyApp(0)     # Create an instance of the application class
app.MainLoop()     # Tell it to start processing events

----------------------------------------------------------------------

The essential point is that you save a reference to the frame when you
create the panel. Then when the button is clicked you can use the
reference to call the frame's Close method.

HTH

Frank Millman




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