Phil wrote:
> Again, thank you for reading this.
>
> I would like a function to be called when I enter text and then tab to the
> next entry box. I've been trying to follow the answers to similar
> questions in Stack Overflow but I've become hopelessly confused because of
> the different answers given to seemingly the same question.
>
> I have created a row of entry boxes and a matching function like this:
>
> for i in range(8):
> self.numbers[i]= Entry(master, width=4, justify=CENTER,
> foreground="gray") self.numbers[i].grid(row=16, column=i)
> self.numbers[i].bind('StringVar()', self.my_function)
>
> def my_function(event):
> print("function called")
To be consistent with the other code snippet this should be a method, not a
function.
>
> The function is not called and I know that the binding of the function to
> the entry boxes is not the correct method. What am I missing?
>
What the ... did you expect from the "StringVar()" argument?
You can find valid events here:
http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/event-types.html
Here's a simple example without a class:
import Tkinter as tk
def welcome(event):
print("Welcome")
def bye(event):
print("Bye!")
root = tk.Tk()
for i in range(3):
entry = tk.Entry(root)
entry.bind("<FocusIn>", welcome)
entry.bind("<FocusOut>", bye)
entry.pack()
root.mainloop()
If you want to pass the index of the entry, say, you can use the
extra-arguments trick,
http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/extra-args.html
also shown in one of my previous answers.
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