private void addAnalysis_Click(object sender, EventArgs e)
 {
     if (checkCorrect())
     {
         String[] b          = maskedTextBox1.Text.Split('.');
         DateTime lastSurvey = new DateTime(Convert.ToInt32(b[2]), Convert.ToInt32(b[1]), Convert.ToInt32(b[0]));
         Analys   analys     = new Analys(lastSurvey);
         foreach (Control control in this.Controls)
         {
             if (control is RichTextBox)
             {
                 analys.addTitles(Convert.ToString(control.Tag), Convert.ToDouble(control.Text));
             }
         }
         patient.addAnalys(analys);
         medicalDB.addAnalysToDatabase(analys, patient);
         List <Patient> l = new List <Patient>();
         l.Add(patient);
         medicalDB.writeToDatabase(l);
         if (owner != null)
         {
             owner.changeLastSurvey();
             owner.reload();
         }
         this.Close();
     }
 }