我在为程序创建弹出窗口时遇到问题.
I have a problem creating a popup window for a program.
代码:
from tkinter import * from tkinter import ttk import tkinter as tk def popupBonus(): popupBonusWindow = tk.Tk() popupBonusWindow.wm_title("Window") labelBonus = Label(popupBonusWindow, text="Input") labelBonus.grid(row=0, column=0) B1 = ttk.Button(popupBonusWindow, text="Okay", command=popupBonusWindow.destroy()) B1.pack() class Application(ttk.Frame): def __init__(self, master): ttk.Frame.__init__(self, master) mainwindow = ttk.Frame(self) self.buttonBonus = ttk.Button(self, text="Bonuses", command=popupBonus) self.buttonBonus.pack()代码生成一个带有按钮的窗口,当你按下按钮时,它应该生成一个标题为Window"、文本为Input"的弹出窗口,并有一个按钮说好的"退出弹出窗口并返回到主窗口.但是,我收到此错误.
The code generates a window with a button and when you press the button, it's supposed to generate a popup window with title "Window", text "Input", and have a button saying "Okay" to exit popup window and return to main window. However, I am getting this error.
Traceback (most recent call last): File "D:\Softwares\Python 3.6.0\lib\tkinter\__init__.py", line 1699, in __call__ return self.func(*args) File "C:\Users\J---- M--\Desktop\Python\GUI-Messagebox 5.py", line 12, in popupBonus B1 = ttk.Button(popupBonusWindow, text="Okay", command=popupBonusWindow.destroy()) File "D:\Softwares\Python 3.6.0\lib\tkinter\ttk.py", line 614, in __init__ Widget.__init__(self, master, "ttk::button", kw) File "D:\Softwares\Python 3.6.0\lib\tkinter\ttk.py", line 559, in __init__ tkinter.Widget.__init__(self, master, widgetname, kw=kw) File "D:\Softwares\Python 3.6.0\lib\tkinter\__init__.py", line 2293, in __init__ (widgetName, self._w) + extra + self._options(cnf)) _tkinter.TclError: NULL main window我不知道问题出在哪里.我尝试了 4 个小时寻找答案,但基本上放弃了.
I have no idea what the problem is. I have trying to find answer for 4 hours and basically gave up.
另外,我不想使用 tkinter 的消息框功能,因为我不想要感叹号图像,而且我想稍后在弹出窗口中包含多个复选框.
Also, I don't want to use tkinter's messagebox feature because I don't want the exclamation mark image and I want to include multiple checkboxs inside the popup window later on.
推荐答案我发现了 3 个错误
- 使用Toplevel()代替Tk()来创建第二/第三个窗口
- command= 需要回调 - 没有 () 的函数名(但你使用 popupBonusWindow.destroy())
- 不要在一个窗口或框架中混用 pack() 和 grid()(但您在弹出窗口中使用 grid() 和 pack() )
- use Toplevel() instead of Tk() to create second/third window
- command= expects callback - function name without () (but you use popupBonusWindow.destroy())
- don't mix pack() and grid() in one window or frame (but you use grid() and pack() in popup)
但是你也可以使用内置的消息框,比如 showinfo()
But you can also use built-in messageboxes like showinfo()
import tkinter as tk from tkinter import ttk from tkinter.messagebox import showinfo def popup_bonus(): win = tk.Toplevel() win.wm_title("Window") l = tk.Label(win, text="Input") l.grid(row=0, column=0) b = ttk.Button(win, text="Okay", command=win.destroy) b.grid(row=1, column=0) def popup_showinfo(): showinfo("Window", "Hello World!") class Application(ttk.Frame): def __init__(self, master): ttk.Frame.__init__(self, master) self.pack() self.button_bonus = ttk.Button(self, text="Bonuses", command=popup_bonus) self.button_bonus.pack() self.button_showinfo = ttk.Button(self, text="Show Info", command=popup_showinfo) self.button_showinfo.pack() root = tk.Tk() app = Application(root) root.mainloop()顺便说一句:我把它放在页面上:Tkinter:如何创建弹出窗口或消息框
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如何在 tkinter 中创建弹出窗口?
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