wxPython中listbox用法实例详解

# load a listbox with names, select a name and display in title
# experiments with wxPython by vegaseat 20mar2005
# Python v2.4 and wxPython v2.5
# If you have not already done so, install Python 2.4 first.
# I used python-2.4.1c2.msi (this is the self-extracting
# MS-Installer file) from http://www.python.org
# Then install wxPython2.5-win32-unicode-2.5.4.1-py24.exe
# from: http://prdownloads.sourceforge.net/wxpython/
# (if you don't get into unicode, download the ansi version)
# note: python-2.4.1c2.msi should soon be python-2.4.1.msi
import wx
def create(parent):
  return Frame1(parent)
# assign ID numbers
[wxID_FRAME1, wxID_FRAME1BUTTON1, wxID_FRAME1BUTTON2, wxID_FRAME1LISTBOX1, 
] = [wx.NewId() for _init_ctrls in range(4)]
class Frame1(wx.Frame):
  def _init_ctrls(self, prnt):
    # BOA generated methods
    wx.Frame.__init__(self, id=wxID_FRAME1, name='', parent=prnt,
       pos=wx.Point(358, 184), size=wx.Size(299, 387),
       style=wx.DEFAULT_FRAME_STYLE, title=u'ListBox Test ...')
    self.SetClientSize(wx.Size(291, 347))
    self.SetBackgroundColour(wx.Colour(0, 128, 0))
    self.button1 = wx.Button(id=wxID_FRAME1BUTTON1, label=u'Load ListBox',
       name='button1', parent=self, pos=wx.Point(8, 8), size=wx.Size(176,
       28), style=0)
    self.button1.Bind(wx.EVT_BUTTON, self.OnButton1Button,
       id=wxID_FRAME1BUTTON1)
    self.listBox1 = wx.ListBox(choices=[], id=wxID_FRAME1LISTBOX1,
       name='listBox1', parent=self, pos=wx.Point(8, 48),
       size=wx.Size(184, 256), style=0)
    self.listBox1.SetBackgroundColour(wx.Colour(255, 255, 128))
    self.listBox1.Bind(wx.EVT_LISTBOX, self.OnListBox1Listbox,
       id=wxID_FRAME1LISTBOX1)
    self.button2 = wx.Button(id=wxID_FRAME1BUTTON2, label=u'Clear',
       name='button2', parent=self, pos=wx.Point(104, 312),
       size=wx.Size(87, 28), style=0)
    self.button2.Bind(wx.EVT_BUTTON, self.OnButton2Button,
       id=wxID_FRAME1BUTTON2)
  def __init__(self, parent):
    self._init_ctrls(parent)
  def OnButton1Button(self, event):
    '''
    click button to load the listbox with names
    '''
    self.listBox1.Append("Andreas")
    self.listBox1.Append("Erich")
    self.listBox1.Append("Udo")
    self.listBox1.Append("Jens")
    self.listBox1.Append("Bjorn")
    self.listBox1.Append("Heidrun")
    self.listBox1.Append("Ulla")
    self.listBox1.Append("Volger")
    self.listBox1.Append("Helmut")
    self.listBox1.Append("Freja")
    self.SetTitle("Select a name ...")
  def OnListBox1Listbox(self, event):
    '''
    click list item and display the selected string in frame's title
    '''
    selName = self.listBox1.GetStringSelection()
    self.SetTitle(selName)
  def OnButton2Button(self, event):
    '''
    click button to clear the listbox items
    '''
    self.listBox1.Clear()
#--------------- end of class Frame1 --------------------
# program entry point ...
if __name__ == '__main__':
  app = wx.PySimpleApp()
  wx.InitAllImageHandlers()
  frame = create(None)
  frame.Show()
  app.MainLoop()

希望本文所述对大家的Python程序设计有所帮助。

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