[英]How do I create a popup window in tkinter?
I have a problem creating a popup window for a program.我在为程序创建弹出窗口时遇到问题。
Code: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()
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.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主窗口. However, I am getting this error.
但是,我收到此错误。
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
I have no idea what the problem is.我不知道问题是什么。 I have trying to find answer for 4 hours and basically gave up.
我试图找到答案 4 个小时,基本上放弃了。
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.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,并且我想稍后在弹出窗口中包含多个复选框。
I found 3 mistakes我发现了3个错误
Toplevel()
instead of Tk()
to create second/third windowToplevel()
而不是Tk()
创建第二/第三个窗口command=
expects callback - function name without ()
command=
需要回调 - 没有()
函数名popupBonusWindow.destroy()
) popupBonusWindow.destroy()
)pack()
and grid()
in one window or framepack()
和grid()
grid()
and pack()
in popup) grid()
和pack()
) But you can also use built-in messageboxes like showinfo()
但是你也可以使用内置的消息框,比如
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()
BTW: I put it on page: Tkinter: How to create popup Window or Messagebox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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