wxPython – wx.RadioBox 中的 ShowItem() 方法

在本文中，我们将学习与 wxPython 的 wx.RadioBox 类关联的 ShowItem() 方法。 ShowItem() 方法是一种用于显示或隐藏单个按钮的简单方法。

如果项目已显示或隐藏，ShowItem() 方法返回 True；如果由于它已处于请求状态而未执行任何操作，则返回 False。

Syntax: wx.RadioBox.ShowItem(self, item, show=True)

Parameters

Parameter	Input Type	Description
item	int	The zero-based position of the button to show or hide.
show	bool	True to show, False to hide.

Return Type: bool

Returns: True if the item has been shown or hidden or False if nothing was done because it already was in the requested state.

代码示例：

import wx
  
  
class FrameUI(wx.Frame):
  
    def __init__(self, parent, title):
        super(FrameUI, self).__init__(parent, title = title, size =(300, 200))
  
        # function for in-frame components
        self.InitUI()
  
    def InitUI(self):
        # parent panel for radio box
        pnl = wx.Panel(self)
  
        # list of choices
        lblList = ['Radio One', 'Radio Two']
  
        # create radio box containing above list
        self.rbox = wx.RadioBox(pnl, label ='RadioBox', pos =(80, 10), choices = lblList,
                                          majorDimension = 1, style = wx.RA_SPECIFY_ROWS)
  
        # hide item at position 0
        self.rbox.ShowItem(0, False)
  
        # set frame in centre
        self.Centre()
        # set size of frame
        self.SetSize((400, 250))
        # show output frame
        self.Show(True)
  
  
# wx App instance
ex = wx.App()
# Example instance
FrameUI(None, 'RadioButton and RadioBox')
ex.MainLoop()

输出窗口：