wxPython – wx.TreeCtrl 中的 ClearFocusedItem() 方法
在本文中,我们将学习与 wxPython 的 wx.TreeCtrl 类关联的 ClearFocusedItem() 方法。 ClearFocusedItem() 是一个简单的方法,用于清除 Tree Control 的当前焦点项。
Syntax: wx.TreeCtrl.ClearFocusedItem(self)
Parameters: No arguments are required by ClearFocusedItem() method.
代码示例:
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()
输出窗口:
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