I've been exploring the amazing Rebol programming tool. I've run into a problem of trying to append text from a text field into the data of a text-list. My code below adds text to the text-list but changes all previous text to the current one multiplied by how many data entries were already in the text list.
How can I correct this?
REBOL [
Title: "test4"
Version: 1.3.3
Author: "me"
Purpose: {create a list of countries}
]
populate: does[
country: countryField/text
append txtList/data country
show lay
]
lay: layout [
across
text "Enter name of country" black bold
countryField: field
return
across
txtList: text-list
panel [
button "Add" [populate]
button "Delete" [remove back tail txtList/data show lay]
button "Clear" [clear txtList/data show lay]
]
]
view lay
You just need to copy
the text:
country: copy countryField/text
For short, without copying a series (a string in this case) you just append the same one multiple times, it is all the same string. When you change it you just change one string but you see it as multiple changes.
Here you can read the detailed explanation:
https://github.com/red/red/wiki/%5BDOC%5D-Why-you-have-to-copy-series-values