您好，我有一些帶有一些值的 comobox（用戶僅選擇一項），我希望根據該選擇，用戶將被允許從單選按鈕中選擇多項選擇。例如： elemnt 的 comobox - 用戶選擇一個元素，然后選擇許多作物 grom 單選按鈕。我無法在兩者之間建立聯系。請幫助我的代碼：def calibration_window(): global cb_elemnt,cb_crop top = tkinter.Toplevel (window) top.title ("Calibration") top.geometry ("400x400") ttk.Label (top, text="Select an element:",font = ("Segoe UI Light", 10)).grid (column=0, row=0) cb_elemnt = ttk.Combobox (top, values=ele_list) cb_elemnt.grid(column=0, row=1) ttk.Label (top, text="Select a crop:",font = ("Segoe UI Light", 10)).grid (column=2, row=0) # connect between element comobox to the func cb_elemnt.bind ("<<ComboboxSelected>>",set_radio)def set_radio(event): i=0 radios=[] for widget in radios: widget.destroy () radios = [] if StringVar().get() !="N": radio_values = pd.unique (df[df['elemnt'] == StringVar().get()]["crop"]) #take the suitable crop from DB else: radio_values = pd.unique (df_nir[df_nir['elemnt'] == StringVar().get()]["crop"]) for t in radio_values: i = i + 1 b = Radiobutton (self, text=t, variable=IntVar(), value=t) b.grid (row=i, column=0) radios.append(b)
1 回答
叮當貓咪
TA貢獻1776條經驗 獲得超12個贊
您應該在函數之外創建您的IntVar列表和列表，這樣它們就不會被垃圾收集。radio
import tkinter as tk
from tkinter import ttk
import pandas as pd
import numpy as np
#sample data
df = pd.DataFrame({"element":np.random.choice(["Elem A","Elem B","Elem C"], 20),
"crops": [f"Crop {i}" for i in range(20)]})
root = tk.Tk()
r_var = tk.IntVar(value=0)
radios=[]
ttk.Label(root, text="Select an element:",font=("Segoe UI Light", 10)).grid(column=0, row=0)
cb_elemnt = ttk.Combobox(root, values=df["element"].unique().tolist())
cb_elemnt.grid(column=0, row=1)
ttk.Label(root, text="Select a crop:",font=("Segoe UI Light", 10)).grid(column=2, row=0)
def set_radio(event):
for widget in radios:
widget.destroy()
if cb_elemnt.get():
radio_values = df.loc[df["element"].eq(cb_elemnt.get()),"crops"]
for num, t in enumerate(radio_values, 1):
b = tk.Radiobutton(root, text=t, variable=r_var, value=t)
b.grid (row=num, column=1)
radios.append(b)
cb_elemnt.bind ("<<ComboboxSelected>>", set_radio)
root.mainloop()
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