.get() not retrieving value?

[Sedos101]

Hi Everyone,

I have setup a combo box to store gradient values as such:

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gradient_value = ["0%","10%","15%","20%"] gradient_dropdown = ttk.Combobox(column_frame, values=gradient_value, state="readonly") gradient_dropdown.pack(pady=5)

I am trying to retrieve that selected value when I select it in my gui using the drop down box using:

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stored_value = None def store_selected_value(event=None):     grad_sel = gradient_dropdown.get()     global stored_value     stored_value= grad_sel     print(f"Gradient: '{stored_value}'")

I have binded as such:

1	gradient_dropdown.bind("<<ComboboxSelected>>", store_selected_value)

which is tacked on the end of my combo creating code:

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gradient_value = ["0%","10%","15%","20%"] gradient_dropdown = ttk.Combobox(column_frame, values=gradient_value, state="readonly") gradient_dropdown.pack(pady=5) gradient_dropdown.bind("<<ComboboxSelected>>", store_selected_value)

however when i select different options in my gui for gradient, it prints empty ''
can someone please help me how to store the value so i can reference as I am trying in the stored_value variable?

Gribouillis write Aug-25-2023, 06:37 AM:
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[menator01]

Here is an example using a callback function

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import tkinter as tk from tkinter import ttk   # Function to print value. Using combo.get() to get the value def callback(event):     label['text'] = f'Selected: {combo.get()}'   root = tk.Tk() root.geometry('400x200+300+300')   # Label to display text label = tk.Label(root, anchor='w') label.pack(fill='x',padx=10)   # Some values to populate the combobox values = [(f'Value {i}') for i in range(11)]   # Define the combobox combo = ttk.Combobox(root, state='readonly') combo['values'] = values combo.current(0) combo.pack(pady=5)   # Bind the combobox and set the function callback combo.bind('<<ComboboxSelected>>', callback)   # Print starting value for label label['text'] = callback(event=None)   root.mainloop()

[deanhystad]

Doing my best to reconstruct your code I came up with this:

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import tkinter as tk import tkinter.ttk as ttk     def store_selected_value(event=None):     grad_sel = gradient_dropdown.get()     global stored_value     stored_value= grad_sel     print(f"Gradient: '{stored_value}'")     root = tk.Tk() stored_value = None column_frame = tk.Frame(root) column_frame.pack(padx=50, pady=50)   gradient_value = ["0%","10%","15%","20%"] gradient_dropdown = ttk.Combobox(column_frame, values=gradient_value, state="readonly") gradient_dropdown.pack(pady=5) gradient_dropdown.bind("<<ComboboxSelected>>", store_selected_value)   root.mainloop()

As I select the gradient values one at a time it prints:

Output:
Gradient: '0%'
Gradient: '10%'
Gradient: '15%'
Gradient: '20%'

The problem must be somewhere else in your code.