How to prevent duplicate records entry in datagridview – Vb.net @mikecodz2821 | Connection String Mike Codz 1 year ago How to prevent duplicate records entry in datagridview – Vb.net @mikecodz2821 | Connection String How to prevent duplicate records entry in datagridview – Vb.net @Mikecodz #connectionstring #datagridview #preventduplicate