private string GetCorrectAnswers()
        {
            string corrects = "";

            for (int i = 0; i < grid.SelectedItems.Count; i++)
            {
                CAnswer a = (CAnswer)grid.SelectedItems[i];

                corrects += a.emptyField + ";";
            }

            return(corrects.TrimEnd(';'));
        }
        private void MakeAnswersFields(int count)
        {
            gridFields = new List <CAnswer>();

            for (int i = 1; i <= count; i++)
            {
                CAnswer _t = new CAnswer();
                _t.emptyField = i.ToString();
                gridFields.Add(_t);
            }

            grid.ItemsSource = gridFields;
        }
        private void MakeAnswersFields(int count)
        {
            gridFields = new List<CAnswer>();

            for (int i = 1; i <= count; i++)
            {
                CAnswer _t = new CAnswer();
                _t.emptyField = i.ToString();
                gridFields.Add(_t);
            }

            grid.ItemsSource = gridFields;
        }