private void CalculateXPThresholdsButton_Click(object sender, RoutedEventArgs e)
 {
     characterList.CalculateCharacterTotals();
     EasyXPTextBlock.Text           = Convert.ToString(characterList.GetTotalEasyXP()) + " XP";
     MediumXPTextBlock.Text         = Convert.ToString(characterList.GetTotalMediumXP()) + " XP";
     HardXPTextBlock.Text           = Convert.ToString(characterList.GetTotalHardXP()) + " XP";
     DeadlyXPTextBlock.Text         = Convert.ToString(characterList.GetTotalDeadlyXP()) + " XP";
     AdventuringDayXPTextBlock.Text = Convert.ToString(characterList.GetTotalAdventuringDayXP()) + " XP";
 }