Hi!
Rather than adding and removing rows in the tags repeater, it’s better to treat it the same way as you do your list repeater: have all the items in the dataset from the start and filter them on the value of Item.Tagged. So basically both the checkbox in the list repeater and the X in the tags repeater behave the exact same way.
I updated your file with this approach, and changed the action of the Select all checkbox. Note that the list repeater no longer needs the tagwidth column in its dataset.
estelkhait_TagsInSelectBox.rp (83.8 KB)
[Edit] I notice that you’ll have to manage unchecking the Select All box. I’d just uncheck that whenever you uncheck any checkbox or tag.
Oh: I just noticed I was missing the Update Rows on the checkbox where it updates Tagged in the list repeater. That’s in there now. (Same link as above)