I'm making a gradebook program (for a project) but I haven't touched VB in years. Given it is a simple language, there's still plenty of things I don't know about it.
At the moment I'm trying to figure out how to limit the characters a user is allowed to input in each specific cell (20) in a DataGridView. (I'll also need to figure out how to limit the input to numbers only, but that's something different right now.)
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