在Toplevel（）窗口中设置默认值

我有下面的代码，我想将窗口小部件初始化为默认值，但他们坚持不这样做。我设置了StringVar（）变量，我正在分配它们，但它仍然不起作用。有什么建议么？在Toplevel（）窗口中设置默认值

import tkinter as tk 
from tkinter import ttk 

class popup(): 

    def __init__(self): 
     edit_window=tk.Toplevel() 

     works_checkbutton_val=[tk.IntVar()]*7 
     start_time_combo_val=[tk.StringVar()]*7 
     end_time_combo_val=[tk.StringVar()]*7 

     datapoint=['Joe Blow','8 AM to 5 PM','8 AM to 5 PM','8 AM to 5 PM','8 AM to 5 PM','8 AM to 5 PM','8 AM to 5 PM','8 AM to 5 PM','3foobarIID'] 
     headings =['Employee Name','Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'] 

     for row in range(1,len(datapoint)-1): 
      ttk.Label(edit_window, text=headings[row]).grid(row=row+1, column=0, sticky='e', pady=((7.5,0),(7.5,7.5))[row==len(datapoint)-2], padx=5) 

      ttk.Label(edit_window, text=headings[0]).grid(row=0, column=0, sticky='e', pady=(7.5,0), padx=5) 
      employee_name_entry = ttk.Entry(edit_window) 
      employee_name_entry.insert(0, datapoint[0]) 
      employee_name_entry.grid(row=0, column=1, columnspan=4, pady=(7.5,0), padx=5, sticky='ew') 

     works_checkbutton=[] 
     start_time_combo=[] 
     end_time_combo=[] 
     for row in range(1,len(datapoint)-1): 
      split_time=datapoint[row].split(' to ') 
      if len(split_time)==1: 
       works_checkbutton_val[row-1].set(0) 
       start_time_combo_val[row-1].set('0 AM') 
       end_time_combo_val[row-1].set('0 AM') 
      else: 
       works_checkbutton_val[row-1].set(1) 
       start_time_combo_val[row-1].set(split_time[0]) 
       end_time_combo_val[row-1].set(split_time[1]) 

      works_checkbutton.append(ttk.Checkbutton(edit_window, variable = works_checkbutton_val[row-1])) 
      works_checkbutton[row-1].grid(row=row+1, column=1, padx=2.5, pady=(0,(0,7.5))[row==len(datapoint)-2], sticky='s') 

      start_time_combo.append(ttk.Combobox(edit_window, values=["%s AM"%(x+1) for x in range(12)] + ["%s PM"%(x+1) for x in range(12)],textvariable=start_time_combo_val[row-1])) 
      start_time_combo[row-1].grid(row=row+1, column=4, pady=((7.5,0),(7.5,7.5))[row==len(datapoint)-2], padx=5) 

      end_time_combo.append(ttk.Combobox(edit_window, values=["%s AM"%(x+1) for x in range(12)] + ["%s PM"%(x+1) for x in range(12)],textvariable=end_time_combo_val[row-1])) 
      end_time_combo[row-1].grid(row=row+1, column=3, pady=((7.5,0),(7.5,7.5))[row==len(datapoint)-2], padx=5) 


main_window=tk.Tk() 
b1 = ttk.Button(main_window,text='here',command=lambda:popup()) 
b1.pack() 
main_window.mainloop()

来源

2016-11-19 Vedvart1

需要'[tk.IntVar（）对于x范围内（7）] [）tk.StringVar（有效范围内（7）X]''' – furas

谢谢，这解决了另一个问题，我所有选项都被链接。但我仍然没有获得初始值。 – Vedvart1

的IntVar，StringVar变量存储在本地变量。一旦popup函数返回，它们将会消失。

你需要保留它们（至少在Toplevel有效之前）。例如，以下行将变量保存为edit_window的实例变量，以便在edit_window顶层有效时它们将存活。

edit_window.vals1 = works_checkbutton_val = [tk.IntVar() for i in range(7)] 
edit_window.vals2 = start_time_combo_val = [tk.StringVar() for i in range(7)] 
edit_window.vals3 = end_time_combo_val = [tk.StringVar() for i in range(7)]

来源

2016-11-19 18:06:30 falsetru

工作，谢谢。 – Vedvart1

在Toplevel（）窗口中设置默认值

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