Question

This sounds basic, but then again it may not be. I have some text in a cell that I want to go bold when an event happens and unbold when another happens, I know how to handle the event, but how do I make it bold and then unbold it.

Answer 1

Make text bold is specific range:

NSMutableAttributedString *theText = [theTextView textStorage];
[theText applyFontTraits:NSBoldFontMask range:NSMakeRange(0,[text length])];

Optionally how to get the selected range:

NSRange theSelectedRange = [theTextView selectedRange];