如何使用 python gui 中第一个 combobox 中选择的值来控制其他组合框的值？

Question

I have been coding in python for the past 15 days...I need a small help with my code... the script which takes any excel sheet(.xlsx) as input and generates the first filled row as dropdown buttons with the same name and it also lists the values of the corresponding columns in that dropdown button. I have created the dropdown buttons using Combobox and i have created them using for loop. The problem is i am able to control only the lastly created Combobox.

What i need is...in the first combobox if i select a element of index 2, then all other following dropdown buttons should refresh and have only the row 2 elements of the corresponding columns.

for eg:

NAME ITEM PRICE PIECES AVAILABLE

Janu biscuit 15 14

Roger cake 35 10

Fidel Cookie 20 20

Vasu nougat 10 5

An excel file has three sheets(week1, week2, week3) with the same data.

a GUI will be created with NAME, ITEM, PRICE, PIECES AVAILABLE(headers) as dropdown buttons which will display all the column elemnts of each header. IF i select Roger of column 1 from combobox, the Item combobox should refresh the items with index 1 as cake and similarly the price combobox should have only 35 as price and so on.

I am not able to upload the.xlsx file here. But the content is given as given in example and the excel name is items_list.xlsx

The code is

import tkinter as tk
from tkinter import ttk
import os
import openpyxl 
from openpyxl.chart import BarChart3D,Reference
from pandas import DataFrame
from tkinter import messagebox
#update the path here
path = "C:\\Users\\anony\\Desktop"



#checking for the path
try: 
    os.chdir(path) 
    print("path changed") 
    print(os.getcwd())

# Caching the exception     
except: 
    print("Path not found")


import openpyxl as py
from openpyxl.chart import BarChart,Reference
#update the file name 
file = "items_list.xlsx"
wb = py.load_workbook(filename=file , read_only = False)
sheets = wb.sheetnames
print (sheets)
ws = wb.active

# intializing the window
window = tk.Tk()
window.title(file)
# configuring size of the window 
window.geometry('350x200')
#Create Tab Control
TAB_CONTROL = ttk.Notebook(window)


def OptionCallBack(*args):
    #print (header_data.get())
    print (header_sheet.current())


def refresh_drop(event):
    selected_index = header_sheet.current()
    selected_value = header_sheet.get()
    print ("selected_index")
    print (selected_index)
    print ("selected value")
    print (selected_value)


 #finding max_row, header_row of each sheet
 for m in range (0,len(sheets)):
    TAB1 = ttk.Frame(TAB_CONTROL)
    TAB_CONTROL.add(TAB1, text=sheets[m])
    sheet = wb[sheets[m]] 
    m_row = sheet.max_row 
    m_col=  sheet.max_column
    for i in range(1, m_row + 1):
        cell_obj = sheet.cell(i,1)   #cell(row,column)
        print (cell_obj.value)

        if(cell_obj.value is not None):
            print ("it comes")
            header_row=i
            print (header_row)
            break

    value_list = []        
    for n in range(1,m_col+1):
        cell_obj = sheet.cell(header_row,n)
        header_row_values = cell_obj.value
        if (header_row_values is not None):
            value_list.append(header_row_values)
            for o in range (header_row+1,m_row+1):
                cell_obj1 = sheet.cell(o,n)
                values_of_that_col = cell_obj1.value
                value_list.append(values_of_that_col)


            header_data = tk.StringVar()
            header_data.trace('w',OptionCallBack)
            value = header_data.get()
            header_sheet= ttk.Combobox(TAB1,width= 15,textvariable = value,values = value_list)
            #value_list.clear()
            header_sheet.grid(column = n, row =1)
            header_sheet.current(0)
            #global value_list_copy
            value_list_copy.append(value_list)
            value_list.clear()
            #global selected_row
            #global selected_col


# Tab_selected = TAB_CONTROL.tab(TAB_CONTROL.select(), "text")
# print(Tab_selected)
# for m in range (0,len(sheets)):
#     if (sheets[m] == Tab_selected):
#        header_sheet1.bind("<<ComboboxSelected>>",refresh_drop)



TAB_CONTROL.pack(expand=1, fill="both")




window.mainloop()

Please help me with this

Answer 1

I created a random array of strings...each value of the randomstring array is used as a name for each combobutton instead of using only A single name for all the combo buttons(the disadvantage of having single name is it allows the user to control only the lastly created combobox)