python之使用按钮 wxpython 更改面板

import wx 
import wx.grid as gridlib 
 
######################################################################## 
class PanelOne(wx.Panel): 
    """""" 
 
    #---------------------------------------------------------------------- 
    def __init__(self, parent): 
        """Constructor""" 
        wx.Panel.__init__(self, parent=parent) 
        txt = wx.TextCtrl(self) 
        button =wx.Button(self, label="Save", pos=(200, 325)) 
        button.Bind(wx.EVT_BUTTON, self.onSwitchPanels) 
 
######################################################################## 
class PanelTwo(wx.Panel): 
    """""" 
 
    #---------------------------------------------------------------------- 
    def __init__(self, parent): 
        """Constructor""" 
        wx.Panel.__init__(self, parent=parent) 
 
        grid = gridlib.Grid(self) 
        grid.CreateGrid(25,12) 
 
        sizer = wx.BoxSizer(wx.VERTICAL) 
        sizer.Add(grid, 0, wx.EXPAND) 
        self.SetSizer(sizer) 
 
######################################################################## 
class MyForm(wx.Frame): 
 
    #---------------------------------------------------------------------- 
    def __init__(self): 
        wx.Frame.__init__(self, None, wx.ID_ANY, 
                          "Panel Switcher Tutorial") 
 
        self.panel_one = PanelOne(self) 
        self.panel_two = PanelTwo(self) 
        self.panel_two.Hide() 
 
        self.sizer = wx.BoxSizer(wx.VERTICAL) 
        self.sizer.Add(self.panel_one, 1, wx.EXPAND) 
        self.sizer.Add(self.panel_two, 1, wx.EXPAND) 
        self.SetSizer(self.sizer) 
 
        menubar = wx.MenuBar() 
        fileMenu = wx.Menu() 
        switch_panels_menu_item = fileMenu.Append(wx.ID_ANY, 
                                                  "Switch Panels", 
                                                  "Some text") 
        self.Bind(wx.EVT_MENU, self.onSwitchPanels, 
                  switch_panels_menu_item) 
        menubar.Append(fileMenu, '&File') 
        self.SetMenuBar(menubar) 
 
    #---------------------------------------------------------------------- 
    def onSwitchPanels(self, event): 
 
       if self.panel_one.IsShown():     
          self.SetTitle("Panel Two Showing") 
          self.panel_one.Hide 
          self.panel_two.Show() 
       else: 
          self.SetTitle("Panel One Showing") 
          self.panel_one.Show() 
          self.panel_two.Hide() 
          self.Layout() 
 
 
# Run the program 
if __name__ == "__main__": 
    app = wx.App(False) 
    frame = MyForm() 
    frame.Show() 
    app.MainLoop() 

我想在单击 PanelOne 类中的按钮时调用 onSwitchPanels 函数。这个应用程序我想像 this code in Tkinter 一样工作.

我有堆栈人员，帮助我，非常感谢。

请您参考如下方法:

一年多前我写了一篇关于这个主题的教程，尽管我使用菜单来进行切换。您可以调整代码以使您的按钮执行此操作。这是教程:http://www.blog.pythonlibrary.org/2010/06/16/wxpython-how-to-switch-between-panels/

编辑:上面代码的问题有三方面。首先在onSwitchPanels方法中，你需要有“self.panel_one.Hide()”。请注意您的代码中缺少的括号。其次，您确实需要取消缩进“self.Layout()”，以便它与 if 语句处于同一级别，而不是在“else”部分内。最后，您不能从 PanelOne 调用“onSwitchPanels”，因为它没有在那里定义。你可以改变它，所以它是这样的:

button.Bind(wx.EVT_BUTTON, parent.onSwitchPanels) 

丑陋且不真正推荐，但它有效。不过，您应该为此使用 PubSub。

编辑 #2:我猜我应该刚刚发布代码，因为 OP 甚至不会尝试我的建议。

import wx 
import wx.grid as gridlib 
 
######################################################################## 
class PanelOne(wx.Panel): 
    """""" 
 
    #---------------------------------------------------------------------- 
    def __init__(self, parent): 
        """Constructor""" 
        wx.Panel.__init__(self, parent=parent) 
        txt = wx.TextCtrl(self) 
        button =wx.Button(self, label="Save", pos=(200, 325)) 
        button.Bind(wx.EVT_BUTTON, parent.onSwitchPanels) 
 
######################################################################## 
class PanelTwo(wx.Panel): 
    """""" 
 
    #---------------------------------------------------------------------- 
    def __init__(self, parent): 
        """Constructor""" 
        wx.Panel.__init__(self, parent=parent) 
 
        grid = gridlib.Grid(self) 
        grid.CreateGrid(25,12) 
 
        sizer = wx.BoxSizer(wx.VERTICAL) 
        sizer.Add(grid, 0, wx.EXPAND) 
        self.SetSizer(sizer) 
 
######################################################################## 
class MyForm(wx.Frame): 
 
    #---------------------------------------------------------------------- 
    def __init__(self): 
        wx.Frame.__init__(self, None, wx.ID_ANY, 
                          "Panel Switcher Tutorial", 
                          size=(800,600)) 
 
        self.panel_one = PanelOne(self) 
        self.panel_two = PanelTwo(self) 
        self.panel_two.Hide() 
 
        self.sizer = wx.BoxSizer(wx.VERTICAL) 
        self.sizer.Add(self.panel_one, 1, wx.EXPAND) 
        self.sizer.Add(self.panel_two, 1, wx.EXPAND) 
        self.SetSizer(self.sizer) 
 
        menubar = wx.MenuBar() 
        fileMenu = wx.Menu() 
        switch_panels_menu_item = fileMenu.Append(wx.ID_ANY, 
                                                  "Switch Panels", 
                                                  "Some text") 
        self.Bind(wx.EVT_MENU, self.onSwitchPanels, 
                  switch_panels_menu_item) 
        menubar.Append(fileMenu, '&File') 
        self.SetMenuBar(menubar) 
 
    #---------------------------------------------------------------------- 
    def onSwitchPanels(self, event): 
 
        if self.panel_one.IsShown(): 
           self.SetTitle("Panel Two Showing") 
           self.panel_one.Hide() 
           self.panel_two.Show() 
        else: 
           self.SetTitle("Panel One Showing") 
           self.panel_one.Show() 
           self.panel_two.Hide() 
        self.Layout() 
 
# Run the program 
if __name__ == "__main__": 
    app = wx.App(False) 
    frame = MyForm() 
    frame.Show() 
    app.MainLoop()