>Thanks.
>You are doing the same thing I am doing. This made me rethink the issue. What I discovered is in another part of the form. In the Listbox I am placing a Picture to represent CheckBoxes. When the user click the list item, the checkbox is toggled from checked to not. But if I move any of the items, the licking is getting confused, and may result in a different item getting checked instead the intended one. This then results in the wrong item getting the concatenated string. I need to code review my code as to why and where this is occurring.
>
>Again thanks for show me that I was looking in wrong place.

Do you store the item state somewhere in the list, or do you rely solely on the associated Picture?