Question

在这个GUI应用程序中，simpleapp是主窗口。作为初始化simpleapp的一部分，我试图设置应用程序的主目录，使用类setHomeDir打开一个窗口，以便我可以确认/设置当前的工作目录。首先，我无法让当前的工作目录显示在setHomeDir窗口中，即我无法让import Tkinter, os class simpleapp(Tkinter.Tk): def __init__(self,parent): Tkinter.Tk.__init__(self,parent) self.geometry('500x300+200+50') self.home_dir=os.getcwd() self.t=setHomeDir(parent=self, home=self.home_dir) class setHomeDir(Tkinter.Tk): def __init__(self,parent, home): Tkinter.Tk.__init__(self) self.parent = parent self.geometry('500x100+200+50') self.title('Set Home Directory') self.grid() #Input Box self.entryVariable = Tkinter.StringVar() self.entry = Tkinter.Entry(self, textvariable=self.entryVariable) self.entryVariable.set(home) self.entry.grid(column=0,row=0,sticky='EW') self.grid_columnconfigure(0,weight=1) self.resizable(True,False) if __name__ == "__main__": app = simpleapp(None) app.title('Main Window') app.mainloop()工作。

我在哪里错了？

 {   
      "Data": {
        "connection-1": {
          "ConnectionString": "Server=..."
        },
        "connection-2": {
          "ConnectionString": "Server=..."
        }   
}

}

Answer 1

此外，您不需要多个Tk（）实例。当有多个实例时会感到困惑，所以请改用Toplevel。

import Tkinter, os

class SimpleApp():
    def __init__(self,parent):
        self.parent = parent
        self.parent.geometry('500x300+200+50')
        self.parent.title('Main Window')
        self.home_dir=os.getcwd()

        ## pass same Tkinter instance to the class
        SetHomeDir(parent=self.parent, home=self.home_dir)

class SetHomeDir():
    def __init__(self,parent, home):
        self.parent = parent
        self.top=Tkinter.Toplevel(self.parent)
        self.top.geometry('500x100+200+500')
        self.top.title('Set Home Directory')

        #Input Box
        self.entryVariable = Tkinter.StringVar()
        self.entry = Tkinter.Entry(self.top, textvariable=self.entryVariable)
        self.entryVariable.set(home) 
        self.entry.grid(column=0,row=0,sticky='EW')
        self.entry.focus_set()

        self.top.grid_columnconfigure(0,weight=1)
        self.top.resizable(True,False)

if __name__ == "__main__":
    root=Tkinter.Tk()
    app = SimpleApp(root)
    root.mainloop()

无法在Tkinter GUI的Entry小部件中显示值

1 个答案: