wx.ListCtrl.InsertItem() raises an exception

wxPython Users
1

Hi,

I am using:
python: 2.3.4
wxPython: 2.5.2.8

I am trying to use the InsertItem() method of wx.ListCtrl. Whenver I call
InsertItem() to insert the first item it raises the exception given below. I
have tried this a couple of different ways. The simplest is given below the
exception. What am I missing?

Thanks,
Tom

Traceback (most recent call last):
  File "./listctrl.py", line 52, in ?
    app = MyApp(0)
  File "/usr/local/lib/python2.3/site-packages/wx/_core.py", line 5243, in
__init__
    self._BootstrapApp()
  File "/usr/local/lib/python2.3/site-packages/wx/_core.py", line 4931, in
_BootstrapApp
    return _core_.PyApp__BootstrapApp(*args, **kwargs)
  File "./listctrl.py", line 44, in OnInit
    frame = MyFrame(None, -1, "")
  File "./listctrl.py", line 21, in __init__
    self.list.InsertItem(info)
  File "/usr/local/lib/python2.3/site-packages/wx/_controls.py", line 4476, in
InsertItem
    return _controls_.ListCtrl_InsertItem(*args, **kwargs)
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed in
../src/common/list.cpp(326): invalid index in wxListBase::Item

<code>
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
# generated by wxGlade 0.3.4 on Sun Sep 19 12:04:31 2004

import wx

class MyFrame(wx.Frame):
    def __init__(self, *args, **kwds):
        # begin wxGlade: MyFrame.__init__
        kwds["style"] = wx.DEFAULT_FRAME_STYLE
        wx.Frame.__init__(self, *args, **kwds)
        self.list = wx.ListCtrl(self, -1, style=wx.LC_REPORT|wx.SUNKEN_BORDER)

        self.__set_properties()
        self.__do_layout()
        # end wxGlade

        info = wx.ListItem()
        info.SetText('Test 1')
        self.list.InsertItem(info)

    def __set_properties(self):
        # begin wxGlade: MyFrame.__set_properties
        self.SetTitle("Test List Control")
        # end wxGlade

    def __do_layout(self):
        # begin wxGlade: MyFrame.__do_layout
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.list, 1, wx.EXPAND, 0)
        self.SetAutoLayout(1)
        self.SetSizer(sizer)
        sizer.Fit(self)
        sizer.SetSizeHints(self)
        self.Layout()
        # end wxGlade

# end of class MyFrame

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

# end of class MyApp

if __name__ == "__main__":
    app = MyApp(0)
    app.MainLoop()
</code>

2

I tracked down the problem to not having any columns. In my other application
I was calling list.ClearAll() which removes columns as well as items.

Thanks,
Tom

···

On Sunday 19 September 2004 12:42, Tom Brown wrote:

Hi,

I am using:
python: 2.3.4
wxPython: 2.5.2.8

I am trying to use the InsertItem() method of wx.ListCtrl. Whenver I call
InsertItem() to insert the first item it raises the exception given below.
I have tried this a couple of different ways. The simplest is given below
the exception. What am I missing?

Thanks,
Tom

Traceback (most recent call last):
  File "./listctrl.py", line 52, in ?
    app = MyApp(0)
  File "/usr/local/lib/python2.3/site-packages/wx/_core.py", line 5243, in
__init__
    self._BootstrapApp()
  File "/usr/local/lib/python2.3/site-packages/wx/_core.py", line 4931, in
_BootstrapApp
    return _core_.PyApp__BootstrapApp(*args, **kwargs)
  File "./listctrl.py", line 44, in OnInit
    frame = MyFrame(None, -1, "")
  File "./listctrl.py", line 21, in __init__
    self.list.InsertItem(info)
  File "/usr/local/lib/python2.3/site-packages/wx/_controls.py", line 4476,
in InsertItem
    return _controls_.ListCtrl_InsertItem(*args, **kwargs)
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed in
../src/common/list.cpp(326): invalid index in wxListBase::Item

<code>
#!/usr/bin/env python
# -*- coding: UTF-8 -*-
# generated by wxGlade 0.3.4 on Sun Sep 19 12:04:31 2004

import wx

class MyFrame(wx.Frame):
    def __init__(self, *args, **kwds):
        # begin wxGlade: MyFrame.__init__
        kwds["style"] = wx.DEFAULT_FRAME_STYLE
        wx.Frame.__init__(self, *args, **kwds)
        self.list = wx.ListCtrl(self, -1,
style=wx.LC_REPORT|wx.SUNKEN_BORDER)

        self.__set_properties()
        self.__do_layout()
        # end wxGlade

        info = wx.ListItem()
        info.SetText('Test 1')
        self.list.InsertItem(info)

    def __set_properties(self):
        # begin wxGlade: MyFrame.__set_properties
        self.SetTitle("Test List Control")
        # end wxGlade

    def __do_layout(self):
        # begin wxGlade: MyFrame.__do_layout
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.list, 1, wx.EXPAND, 0)
        self.SetAutoLayout(1)
        self.SetSizer(sizer)
        sizer.Fit(self)
        sizer.SetSizeHints(self)
        self.Layout()
        # end wxGlade

# end of class MyFrame

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

# end of class MyApp

if __name__ == "__main__":
    app = MyApp(0)
    app.MainLoop()
</code>

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