How do I trim the top line of a textbox in VB?

I am working on a website that has a textbox that will hold basic information. To keep the textbox info from getting too large, I would like to trim older (top) lines of info. I was thinking 100 lines would be perfect for my textbox.


Could someone please tell me the code I need to use to get this to happen in the page load sub?


Thanks :-)
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