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Posez votre questionUsing conn As MySqlConnection = New MySqlConnection("server=localhost; uid=root;pwd=;database=realmd;") Using cmd As MySqlCommand = New MySqlCommand("SELECT username FROM account", conn) conn.Open() Using reader As MySqlDataReader = cmd.ExecuteReader() While reader.Read() ComboBox1.Items.Add(reader("username")) End While End Using End Using End Using