private void SetEntryFee_Click(object sender, RoutedEventArgs e)
        {
            string entryFeeInput = entryFeeTextBox.Text;
            var    validate      = tournamentController.validateEntryFee(entryFeeInput);

            if (validate != -1)
            {
                if (int.TryParse(entryFeeInput, out int value))
                {
                    prizePool = teamsInTournament.Count * value;
                }
                if (double.TryParse(entryFeeInput, out double doubleValue))
                {
                    prizePool = (double)teamsInTournament.Count * doubleValue;
                }
                totalPrizePool.Text         = prizePool.ToString();
                entryFeeTextBox.BorderBrush = new SolidColorBrush(Colors.Green);
                setPrizeAmounts();
            }
            else
            {
                entryFeeTextBox.BorderBrush = new SolidColorBrush(Colors.Red);
            }
        }