wxPython - dynamially update a listctrl depending on input into a textctrl

Question

does anyone of you have an example how to make the following possible:

I have a listctrl that displays > 600 items. Now I need to search in these items for a text the user inputs and update the list to only show the items containing this string.

So let us say the list contains "Hello", "Hi" and "Morning". The list displays all three items. Now the user types "h" into the textctrl, and the listctrl is narrowed down to "Hello" and "Hi". If the user instead types "o", and the list becomes "Hello" and "Morning".

Is this possible? Or is there any other convenient way to find an item in a listctrl? The build in "find as you type" is only of real use if you do exactly know what you search for - and in my case this will not really be the case...

Thanks, Woodpicker

Answer 1

The wxPython demo has a pretty good "type-ahead" filter built into it. Looking at the source code to Main.py they do it the "manual way", loop and rebuild the list. They are using a treeview but the ideas are sound:

def OnSearch(self, event=None):

    value = self.filter.GetValue()
    if not value:
        self.RecreateTree()
        return

    wx.BeginBusyCursor()

    for category, items in _treeList:
        self.searchItems[category] = []
        for childItem in items:
            if SearchDemo(childItem, value):
                self.searchItems[category].append(childItem)

    wx.EndBusyCursor()
    self.RecreateTree()