private void TrainingParametersForm_Load(object sender, EventArgs e)
 {
     main = this.Owner as TrainedForm;
     if (main != null)
     {
         currentUser = main.CurrentUser;
         if (currentUser.NumberOfLastLevel != 0)
         {
             numericUpDownLevel.Value = currentUser.NumberOfLastLevel;
             if (!currentUser.DateofLastTraining.ToString().Equals("01.01.0001 0:00:00"))
             {
                 numberOfCurrentExercise = currentUser.getLastNumberOfEx();
                 numberOfCurrentExercise++;
                 switch (numberOfCurrentExercise)
                 {
                     case 0: break;
                     case 1: exercise1RButton.Checked = true; break;
                     case 2: exercise2RButton.Checked = true; break;
                     case 3: exercise3RButton.Checked = true; break;
                     case 4: exercise4RButton.Checked = true; break;
                     case 5: exercise5RButton.Checked = true; break;
                     case 6: exercise6RButton.Checked = true; break;
                     case 7: exercise7RButton.Checked = true; break;
                     case 8: exercise8RButton.Checked = true; break;
                     case 9: exercise9RButton.Checked = true; break;
                     case 10: exercise10RButton.Checked = true; break;
                     case 11: exercise11RButton.Checked = true; break;
                     case 12: exercise12RButton.Checked = true; break;
                     case 13: exercise13RButton.Checked = true; break;
                     case 14: exercise14RButton.Checked = true; break;
                     case 15: exercise15RButton.Checked = true; break;
                 }
             }
         }
       
     }
 }