Oop 在wxPython中设置wx.TextCtrl的值时出现问题

我试图将用户选择的目录传递回名为

chooserot

的

wx.TextCtrl

目录。这到目前为止还没有奏效

我做错了什么？我尝试了不同的方法，但要么挂起，要么收到错误消息

回溯（最近一次呼叫最后一次）：
文件“F:\Indexinator3000_x64.pyw”，第78行，在onchooserot中
self.chooserot.SetValue（“Hello”）
AttributeError:“MainPanel”对象没有属性“ChooseRot”

---

仔细阅读我在你之前的文章中给你的建议。特别是：

• 为小部件使用对象属性，这样您就不会丢失对它们的跟踪（

  self.chooserot=…

  ）
• 使用更多描述小部件名称（

  self.labelchooserot

  ）

在

\uuuu init\uuuu

方法（又名构造函数）之外，您会丢失对小部件的跟踪。您必须将它们作为属性添加到

MainPanel

对象中

class MainPanel(wx.Panel):
    def __init__(self, parent, id):
        ...
        self.ChooseRoot = wx.TextCtrl(self, size=(210, -1))
        ...

    def OnChooseRoot(self, event=None):
        ...
        self.ChooseRoot.SetValue(RootPath)
        ...

我还推荐一些关于OOP概念的阅读。也许你可以从这里开始

编辑： 你差点就成功了。这个主意还可以，你只是忘了几个地方。我已经更新了你的代码以符合我的“标准”，删除了一些不必要的复制/粘贴内容和其他一些小的调整。使用一些比较软件，仔细比较，看看变化，如果你喜欢的话

import wx 

ID_EXIT = 110

class MainPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)

        self.buttonRun = wx.Button(self, label="Run")
        self.buttonRun.Bind(wx.EVT_BUTTON, self.OnRun )
        self.buttonExit = wx.Button(self, label="Exit")
        self.buttonExit.Bind(wx.EVT_BUTTON, self.OnExit)

        self.labelChooseRoot = wx.StaticText(self, label ="Root catalog: ") 
        self.labelScratchWrk = wx.StaticText(self, label ="Scratch workspace: ")
        self.labelMergeFile = wx.StaticText(self, label ="Merge file: ")

        self.textChooseRoot = wx.TextCtrl(self, size=(210, -1))
        self.textChooseRoot.Bind(wx.EVT_LEFT_UP, self.OnChooseRoot)
        self.textScratchWrk = wx.TextCtrl(self, size=(210, -1))
        self.textMergeFile = wx.TextCtrl(self, size=(210, -1))
        self.textOutput = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.TE_READONLY)

        self.sizerF = wx.FlexGridSizer(3, 2, 5, 5)
        self.sizerF.Add(self.labelChooseRoot)  #row 1, col 1
        self.sizerF.Add(self.textChooseRoot)   #row 1, col 2
        self.sizerF.Add(self.labelScratchWrk)  #row 2, col 1
        self.sizerF.Add(self.textScratchWrk)   #row 2, col 2
        self.sizerF.Add(self.labelMergeFile)   #row 3, col 1
        self.sizerF.Add(self.textMergeFile)    #row 3, col 2

        self.sizerB = wx.BoxSizer(wx.VERTICAL)
        self.sizerB.Add(self.buttonRun, 1, wx.ALIGN_RIGHT|wx.ALL, 5)
        self.sizerB.Add(self.buttonExit, 0, wx.ALIGN_RIGHT|wx.ALL, 5)

        self.sizer1 = wx.BoxSizer()
        self.sizer1.Add(self.sizerF, 0, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL, 10)
        self.sizer1.Add(self.sizerB, 0, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL)

        self.sizer2 = wx.BoxSizer()
        self.sizer2.Add(self.textOutput, 1, wx.EXPAND | wx.ALL, 5)

        self.sizerFinal = wx.BoxSizer(wx.VERTICAL)
        self.sizerFinal.Add(self.sizer1, 0, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL)
        self.sizerFinal.Add(self.sizer2, 1, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL)

        self.SetSizerAndFit(self.sizerFinal)


    def OnChooseRoot(self, event):
        dlg = wx.DirDialog(self, "Choose a directory:", style=wx.DD_DEFAULT_STYLE)
        if dlg.ShowModal() == wx.ID_OK:
            root_path = dlg.GetPath()
            self.textChooseRoot.SetValue(root_path)
        dlg.Destroy()

    def OnRun(self, event):
        #First check if any of the boxes is empty
        pass

    def OnExit(self, event):
        self.GetParent().Close()


class MainWindow(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="IndexGenerator", size=(430, 330), 
                          style=((wx.DEFAULT_FRAME_STYLE | wx.NO_FULL_REPAINT_ON_RESIZE | 
                                  wx.STAY_ON_TOP) ^ wx.RESIZE_BORDER))
        self.CreateStatusBar() 

        self.fileMenu = wx.Menu()
        self.fileMenu.Append(ID_EXIT, "E&xit", "Exit the program")
        self.menuBar = wx.MenuBar()
        self.menuBar.Append(self.fileMenu, "&File")
        self.SetMenuBar(self.menuBar)
        wx.EVT_MENU(self, ID_EXIT, self.OnExit)                    

        self.Panel = MainPanel(self)

        self.CentreOnScreen()
        self.Show()

    def OnExit(self,  event):
        self.Close()

if __name__ == "__main__":
    app = wx.App(False)
    frame = MainWindow()
    app.MainLoop()

---

你好。我试过了，但是pytonw.exe冻结了。这就是为什么我认为这是错误的。主程序是

如果'uuuuu name'=''uuuuuu main':try:app=wx.PySimpleApp（）frame=MainWindow（无，-1，“索引生成器”）app.MainLoop（）最后：del app

可能是这导致的吗？我是否也应该将self添加到sizer中？尝试将self添加到除sizers之外的所有文件，pytonw.exe仍然挂起。很抱歉布局问题，评论格式有问题。请用整个可运行程序更新您的问题。我已经更新了您的代码。仔细阅读，了解所有要点。非常感谢Fenikso。看到你做了一些关于应用程序和主窗口类的更改。我去看看

import wx 

ID_EXIT = 110

class MainPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)

        self.buttonRun = wx.Button(self, label="Run")
        self.buttonRun.Bind(wx.EVT_BUTTON, self.OnRun )
        self.buttonExit = wx.Button(self, label="Exit")
        self.buttonExit.Bind(wx.EVT_BUTTON, self.OnExit)

        self.labelChooseRoot = wx.StaticText(self, label ="Root catalog: ") 
        self.labelScratchWrk = wx.StaticText(self, label ="Scratch workspace: ")
        self.labelMergeFile = wx.StaticText(self, label ="Merge file: ")

        self.textChooseRoot = wx.TextCtrl(self, size=(210, -1))
        self.textChooseRoot.Bind(wx.EVT_LEFT_UP, self.OnChooseRoot)
        self.textScratchWrk = wx.TextCtrl(self, size=(210, -1))
        self.textMergeFile = wx.TextCtrl(self, size=(210, -1))
        self.textOutput = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.TE_READONLY)

        self.sizerF = wx.FlexGridSizer(3, 2, 5, 5)
        self.sizerF.Add(self.labelChooseRoot)  #row 1, col 1
        self.sizerF.Add(self.textChooseRoot)   #row 1, col 2
        self.sizerF.Add(self.labelScratchWrk)  #row 2, col 1
        self.sizerF.Add(self.textScratchWrk)   #row 2, col 2
        self.sizerF.Add(self.labelMergeFile)   #row 3, col 1
        self.sizerF.Add(self.textMergeFile)    #row 3, col 2

        self.sizerB = wx.BoxSizer(wx.VERTICAL)
        self.sizerB.Add(self.buttonRun, 1, wx.ALIGN_RIGHT|wx.ALL, 5)
        self.sizerB.Add(self.buttonExit, 0, wx.ALIGN_RIGHT|wx.ALL, 5)

        self.sizer1 = wx.BoxSizer()
        self.sizer1.Add(self.sizerF, 0, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL, 10)
        self.sizer1.Add(self.sizerB, 0, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL)

        self.sizer2 = wx.BoxSizer()
        self.sizer2.Add(self.textOutput, 1, wx.EXPAND | wx.ALL, 5)

        self.sizerFinal = wx.BoxSizer(wx.VERTICAL)
        self.sizerFinal.Add(self.sizer1, 0, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL)
        self.sizerFinal.Add(self.sizer2, 1, wx.ALIGN_RIGHT | wx.EXPAND | wx.ALL)

        self.SetSizerAndFit(self.sizerFinal)


    def OnChooseRoot(self, event):
        dlg = wx.DirDialog(self, "Choose a directory:", style=wx.DD_DEFAULT_STYLE)
        if dlg.ShowModal() == wx.ID_OK:
            root_path = dlg.GetPath()
            self.textChooseRoot.SetValue(root_path)
        dlg.Destroy()

    def OnRun(self, event):
        #First check if any of the boxes is empty
        pass

    def OnExit(self, event):
        self.GetParent().Close()


class MainWindow(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, title="IndexGenerator", size=(430, 330), 
                          style=((wx.DEFAULT_FRAME_STYLE | wx.NO_FULL_REPAINT_ON_RESIZE | 
                                  wx.STAY_ON_TOP) ^ wx.RESIZE_BORDER))
        self.CreateStatusBar() 

        self.fileMenu = wx.Menu()
        self.fileMenu.Append(ID_EXIT, "E&xit", "Exit the program")
        self.menuBar = wx.MenuBar()
        self.menuBar.Append(self.fileMenu, "&File")
        self.SetMenuBar(self.menuBar)
        wx.EVT_MENU(self, ID_EXIT, self.OnExit)                    

        self.Panel = MainPanel(self)

        self.CentreOnScreen()
        self.Show()

    def OnExit(self,  event):
        self.Close()

if __name__ == "__main__":
    app = wx.App(False)
    frame = MainWindow()
    app.MainLoop()