what would i do if i want it to check if something certain has happened when there is a change on the form? because i have a tab control and each tab has 2 different textboxes and when they are the same i want a notice to pop up, but i cant really program it into the form because right now i have it as form1 mouse hover but if they over the tab the notice wont pop up. what should i do?

I'm not sure what you are trying to do, but can you do a comparison in the "Changed" event of the textboxes?

ok, thanks, that might be easier

You need to handle the Change event of the text boxes.

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