void start_Click(object sender, EventArgs e)
        {
            IPhoneBackup backup = SelectedBackup;
            if (backup == null)
                return;

            IPhoneApp app = backup.GetApps().FirstOrDefault(t => t.Name == "System");
            IPhoneFile dbFile = app.Files.FirstOrDefault(t => t.Path.Contains("sms.db"));
            FileInfo fileInfo = FileManager.GetWorkingFile(backup, dbFile,true);

            SMSAnalyzer analyzer = new SMSAnalyzer(backup, fileInfo.FullName);
            analyzer.Show();
        }
        void start_Click(object sender, EventArgs e)
        {
            IPhoneBackup backup = SelectedBackup;

            if (backup == null)
            {
                return;
            }

            IPhoneApp  app      = backup.GetApps().FirstOrDefault(t => t.Name == "System");
            IPhoneFile dbFile   = app.Files.FirstOrDefault(t => t.Path.Contains("sms.db"));
            FileInfo   fileInfo = FileManager.GetWorkingFile(backup, dbFile, true);

            SMSAnalyzer analyzer = new SMSAnalyzer(backup, fileInfo.FullName);

            analyzer.Show();
        }