如何将组合框绑定到单选按钮

Question

我有一些单选按钮。根据选择的单选按钮，我希望有不同的组合框值。我不知道我该如何解决这个问题。在进一步的步骤中，我想创建更多的组合框，这些组合框取决于第一个的值。

以下代码创建用户列表，但它没有显示在组合框中。

对我来说，很难理解函数的正确位置，以及我是否需要 lambda 函数或绑定。

import tkinter as tk
from tkinter import ttk
import pandas as pd
import os

global version
global df_MA
df_MA = []


class Window(tk.Toplevel):
    def __init__(self, parent):
        super().__init__(parent)

        self.geometry('300x100')
        self.title('Toplevel Window')
        self.btn = ttk.Button(self, text='Close',command=self.destroy).pack(expand=True)

class App(tk.Tk):

    def __init__(self,*args, **kwargs):
        super().__init__()

        # def load_input_values(self):
        def set_department(department):
            if department == "produktion":
                working_df_complete = path_input_produktion
            if department == "service":
                working_df_complete = path_input_service

            working_df_complete = pd.read_excel(working_df_complete)
            working_df_complete = pd.DataFrame(working_df_complete)
            '''set worker df'''
            df_MA = working_df_complete.loc[:,'MA']
            df_MA = list(df_MA.values.tolist())

        def select_working_step():

            return

        '''Define Variable Bereich aofter clicking of radio button '''
        '''SEEMS TO ME UNECCESSARY COMPLICATED, but I dont't know how to do it properly. I am no progammer'''

        border = 10
        spacey = 10

        '''paths for input file'''
        path_input_produktion = os.path.abspath('input_data\werte_comboboxen_produktion.xlsx')
        path_input_service = os.path.abspath('input_data\werte_comboboxen_service.xlsx')

        self.geometry('500x600')


        '''Variablen for department'''
        department = tk.StringVar()
        department.set(" ")

        '''place Frame department'''
        self.rb_frame_abteilung = tk.Frame(self)
        '''Radiobuttons for department'''
        rb_abteilung_produktion = tk.Radiobutton(self.rb_frame_abteilung, text="Produktion", variable= department,
                                                 value="produktion", command= lambda: set_department(department.get()))

        rb_abteilung_service = tk.Radiobutton(self.rb_frame_abteilung, text="Service", variable= department,
                                              value="service", command= lambda: set_department(department.get()) )

        rb_abteilung_produktion.pack(side="left", fill=None, expand=False, padx=10)
        rb_abteilung_service.pack(side="left", fill=None, expand=False, padx =10)
        self.rb_frame_abteilung.grid(row=5, column=1, sticky="nw", columnspan=99)


        self.label_user = ttk.Label(self, text='user').grid(row=15,
                                                                 column=15, pady=spacey,padx=border, sticky='w')
        self.combobox_user = ttk.Combobox(self, width = 10, value= df_MA)
        self.combobox_user.bind("<<ComboboxSelected>>", select_working_step)
        self.combobox_user.grid(row=15, column=20, pady=spacey, sticky='w')

if __name__ == "__main__":
    app = App()
    app.mainloop()
´´´

Answer 1

我使用索引重写了所有内容并删除了全局变量...

#!/usr/bin/python3
import tkinter as tk
from tkinter import ttk
from tkinter import messagebox


class App(tk.Tk):
    """Application start here"""
    def __init__(self):
        super().__init__()

        self.protocol("WM_DELETE_WINDOW", self.on_close)
        self.title("Simple App")
        
        self.option = tk.IntVar()
        self.departments = ('Produktion','Service')
        self.df_MA_1 = ['Peter','Hans','Alfred']
        self.df_MA_2 = ['Otto','Friedrich','Tanja']

        self.init_ui()
        self.on_reset()

    def init_ui(self):
        
        w = ttk.Frame(self, padding=8)
       
        r = 0
        c = 1
        ttk.Label(w, text="Combobox:").grid(row=r, sticky=tk.W)
        self.cbCombo = ttk.Combobox(w, values="")
        self.cbCombo.grid(row=r, column=c, padx=5, pady=5)

        r += 1
        ttk.Label(w, text="Radiobutton:").grid(row=r, sticky=tk.W)
        for index, text in enumerate(self.departments):
            ttk.Radiobutton(w,
                            text=text,
                            variable=self.option,
                            value=index,
                            command= self.set_combo_values).grid(row=r,
                                                                 column=c,
                                                                 sticky=tk.W,
                                                                 padx=5, pady=5)
            r +=1
            
        r = 0
        c = 2
        
        b = ttk.LabelFrame(self, text="", relief=tk.GROOVE, padding=5)

        bts = [("Reset", 0, self.on_reset, "<Alt-r>"),
               ("Close", 0, self.on_close, "<Alt-c>")]

        for btn in bts:
            ttk.Button(b, text=btn[0], underline=btn[1], command = btn[2]).grid(row=r,
                                                                                column=c,
                                                                                sticky=tk.N+tk.W+tk.E,
                                                                                padx=5, pady=5)
            self.bind(btn[3], btn[2])
            r += 1
            
        b.grid(row=0, column=1, sticky=tk.N+tk.W+tk.S+tk.E)
        w.grid(row=0, column=0, sticky=tk.N+tk.W+tk.S+tk.E)


    def set_combo_values(self):

        print("you have selected {0} radio option".format(self.option.get()))

        self.cbCombo.set("")

        if self.option.get() == 0:
            self.cbCombo["values"] = self.df_MA_1
        else:
            self.cbCombo["values"] = self.df_MA_2
            
        
    def on_reset(self, evt=None):
        self.cbCombo.set("")
        self.option.set(0)
        self.set_combo_values()
          
        
    def on_close(self,evt=None):
        """Close all"""
        if messagebox.askokcancel(self.title(), "Do you want to quit?", parent=self):
            self.destroy()

def main():

    app = App()
    app.mainloop()

if __name__ == '__main__':
    main()