Dialogs in wxPython

wxSingleChoiceDialog

Instead of using a wxListBox to gather input from a user, you can use the wxSingleChoiceDialog. Upon calling it, a dialog is displayed to the user with a list of items that the user can select. The user may only select one item on the list. At the bottom of the dialog, there is an “OK” button and a “Cancel” button. Let's create a simple application with the dialog:

from wxPython.wx import *

from wxPython.lib.dialogs import *

application = wxPySimpleApp()

# Create a list of choices

choices = [ 'Red', 'Blue', 'Green', 'Pink', 'White' ]

# Create the dialog

dialog = wxSingleChoiceDialog ( None, 'Pick something....', 'Dialog Title', choices )

# Show the dialog

dialog.ShowModal()

# Destroy the dialog

dialog.Destroy()

Of course, to make our dialog of any use, we'll have to catch the user's selection and perhaps react to the user pressing the “Cancel” button:

from wxPython.wx import *

application = wxPySimpleApp()

choices = [ 'Red', 'Blue', 'Green', 'Pink', 'White' ]

dialog = wxSingleChoiceDialog ( None, 'Pick something....', 'Dialog Title', choices )

# The user pressed the "OK" button in the dialog

if dialog.ShowModal() == wxID_OK:

   print 'Position of selection:', dialog.GetSelection()

   print 'Selection:', dialog.GetStringSelection()

# The user exited the dialog without pressing the "OK" button

else:

   print 'You did not select anything.'

dialog.Destroy()

If we want to give the user the option of selecting multiple items by pressing the shift key while clicking a selection or holding down the mouse and moving the cursor down, we can do so with wxMultiChoiceDialog:

from wxPython.wx import *

application = wxPySimpleApp()

choices = [ 'Red', 'Blue', 'Green', 'Pink', 'White' ]

dialog = wxMultiChoiceDialog ( None, 'Pick something....', 'Dialog Title', choices )

# The user pressed the "OK" button in the dialog

if dialog.ShowModal() == wxID_OK:

   selected = dialog.GetSelections()

   for selection in selected:

      print str ( selection ) + ': ' + choices [ selection ]

# The user exited the dialog without pressing the "OK" button

else:

   print 'You did not select anything.'

dialog.Destroy()