Ability to fill entry boxes if user does not

[robertlugg]

Original text from:
http://all-you-need-is-tech.blogspot.com/2013/01/improving-easygui-for-python.html

Andrew S08 June, 2013 23:32
Thanks Robbie this is very useful for building GUIs that look decent without much effort. One question: I have a multenterbox where one field can be left blank; if left blank, the program will autogenerate a number for the user. I would like to update the onscreen field with this number without closing the window (remain inside the callback). How can this be achieved?

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Robbie Brook09 June, 2013 12:00
Hi Andrew,
What you're asking to do is actually populate the values in easygui.multenterbox after you sent them. This feature isn't supported.
I would go for a simple solution like:

import easygui_callback 
import random

def get_auto_value():
    # your logic here
    return random.random()
choices = ["name", "address", "auto-field"]
values= ['default-name','default-address','']
input= ''

while True:
    input = easygui_callback.multenterbox("auto field","generator", choices,values)
    if input == None: break
if input[2] == "":
    values= [input[0],input[1],get_auto_value()]
else:
    # save data somewhere or whatever
    pass

If you really have to work with callback, you can hack easygui_callback.multenterbox to send also 'values' list to callback and set it there. On return from callback, you'll need to set this value list into its matching widget.