How to Select All Items in Choice Component?

[smallpond]

Hello! I’m trying to implement a “Select All” button that highlights all the letters when clicked.

Here’s what I’ve done so far:

• Clicking the “Select All” button adds all the letters from the joined list
  (A, B, C, D, E, F, G, H, I, J, K, L) to the Selected column.
• However, only the letter “A” gets highlighted in the choice component, even though all the letters are in the column (as shown in the screenshot).

Is there any way to get all the items highlighted?

[Jeff_Hager]

Remove all the spaces in the joined list.
’ B’ is very different from ‘B’.

[smallpond]

@Jeff_Hager Thank you for your quick response! Yes, it worked after removing the spaces!!