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wxPython wx.TreeCtrl ClearFocusedItem()用法及代碼示例

在本文中,我們將學習與wxPython的wx.TreeCtrl類關聯的ClearFocusedItem()方法。 ClearFocusedItem()是一種簡單的方法,用於清除Tree Control當前關注的項目。

用法: wx.TreeCtrl.ClearFocusedItem(self)

參數:ClearFocusedItem()方法不需要任何參數。

代碼示例:

import wx 
  
class Tree(wx.Panel):
  
    def __init__(self, parent):
        wx.Panel.__init__(self, parent) 
  
        # create Tree Control in frame 
        self.tree = wx.TreeCtrl(self, wx.ID_ANY, wx.DefaultPosition, 
                                                 wx.DefaultSize, 
                                                 wx.TR_HAS_BUTTONS) 
  
        # Create root for Tree Control 
        self.root = self.tree.AddRoot('Root') 
  
        # Add item to root 
        item = self.tree.AppendItem(self.root, 'Item') 
  
        # Clear focused item 
        self.tree.ClearFocusedItem() 
  
        # expand tree 
        self.tree.Expand(self.root) 
  
        sizer = wx.BoxSizer(wx.VERTICAL) 
        sizer.Add(self.tree, 0, wx.EXPAND) 
        self.SetSizer(sizer) 
  
# main root frame for tree control 
class rootframe(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, parent = None, title ='TreeCtrl Demo') 
        panel = Tree(self) 
        self.Show() 
  
  
if __name__ == '__main__':
    app = wx.App(redirect = False) 
    frame = rootframe() 
    app.MainLoop()

輸出窗口:

沒有任何項目集中在樹控件中




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注:本文由純淨天空篩選整理自RahulSabharwal大神的英文原創作品 wxPython – ClearFocusedItem() method in wx.TreeCtrl。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。