Filtering through choices

Sometimes, there is a need to present users with the number of times they need to choose some or all of the items. There are several ways to perform this task, one of which is using the ItemsPicker control. This control allows presenting a list of choices in the ListBox control and filtering them into another ListBox control of selections. In this recipe, we will see how to make use of ItemsPicker to select from a group of choices.

How to do it…

Perform the following steps:

1. First, let's make a window to hold the ItemsPicker control, as follows:

   class ListMaker(wx.Frame):
       def __init__(self, parent, choices, title):
           super(ListMaker, self).__init__(parent, title=title)
           style = IP.IP_REMOVE_FROM_CHOICES
           self.picker = IP.ItemsPicker(self, choices=choices, 
                                        ipStyle=style)
           style = wx.TE_RICH2|wx.TE_MULTILINE
           self.txt = wx.TextCtrl(self, style=style)
           self._DoLayout()
           self.picker...