I have a datagridview with a checkbox column next to it. The datagridview holds a list of all open invoices for a given customer. I don't want the checkbox to check off if there is no money to apply to this invoice. Basically every time the checkbox is
unchecked and the user is trying to check in the check box it should check if there is money to apply if yes then check it off if not then it should give a message that it can't check off.
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