Question

I am using wxPython and got a tree with some items.
Now I need a function which give me the tree item object by name.

For example:
item = self.GetItemByName(“MyStories”)

I can not find such function in the documentation.

Does anyone has any ideas?

Answer 1

Here’s one way to find the first tree item with a specific label:

def get_item_by_label(self, tree, search_text, root_item):
    item, cookie = tree.GetFirstChild(root_item)

    while item.IsOk():
        text = tree.GetItemText(item)
        if text.lower() == search_text.lower():
            return item
        if tree.ItemHasChildren(item):
            match = self.get_item_by_label(tree, search_text, item)
            if match.IsOk():
                return match
        item, cookie = tree.GetNextChild(root_item, cookie)

    return wx.TreeItemId()

result = get_item_by_label(tree, 'MyStories', tree.GetRootItem())
if result.IsOk():
    print('We have a match!')

But depending on what you’re displaying in the tree, there’s probably an easier way to handle it. The TreeCtrl already provides the tools to create references both ways between tree items and other objects as you fill the tree, and dict lookups are much faster and cleaner looking than what I just typed.