In this article we are going to learn about ExpandAll() method associated with wx.TreeCtrl class of wxPython. ExpandAll() method is similar to Expand() but the only difference is that this method is used to expand all the items present in the Tree Control. All child nodes along with their parent nodes are visible using this method.
No parameters are required by this method.
Syntax: wx.TreeCtrl.ExpandAll(self)
Parameters:
No parameters are required by this method.
Code Example:
Python
import wx class MyTree(wx.TreeCtrl): def __init__(self, parent, id, pos, size, style): wx.TreeCtrl.__init__(self, parent, id, pos, size, style) class TreePanel(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) # create tree control in window self.tree = MyTree(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize, wx.TR_HAS_BUTTONS) # CREATE TREE ROOT self.root = self.tree.AddRoot('root') self.tree.SetPyData(self.root, ('key', 'value')) # add item to root item = self.tree.AppendItem(self.root, "Item") item2 = self.tree.AppendItem(self.root, "Item") item3 = self.tree.AppendItem(item, "SubItem") # expand all nodes of the tree self.tree.ExpandAll() sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(self.tree, 0, wx.EXPAND) self.SetSizer(sizer) class MainFrame(wx.Frame): def __init__(self): wx.Frame.__init__(self, parent = None, title ='TreeCtrl Demo') panel = TreePanel(self) self.Show() if __name__ == '__main__': app = wx.App(redirect = False) frame = MainFrame() app.MainLoop() |
Output:
