Check boxes in a for loop

My question here is a bit weird. I am loading an XML using XMLDocument in C#, and for each line I am adding on the listList.items.add I want to have a check box next to it. for example:

1. item 1 checkbox
2. item 2 checkbox
3. item 3 checkbox

In advance, I would like to check the checkboxes based on a condition. I don't want to have all or none checked at the same time.

Thanks in advance to anyone who spends time on this. Code is not essential, looking for ideas.