/// <summary>
        /// Reserches and returns the number of the button which should have been clicked according to the context.
        /// </summary>
        /// <returns>number of the correct button</returns>
        private int FindGoodAnswer()
        {
            ComponentFocus current  = Series[CurrentSeries].Components[CurrentComponent];
            ComponentFocus previous = Series[CurrentSeries].Components[PreviousComponent];

            if (current.Color == previous.Color && tlpButtons.Contains(buttonSameColor))
            {
                return(tlpButtons.GetRow(buttonSameColor) + 1);
            }
            else if (current.DotNumber == previous.DotNumber && tlpButtons.Contains(buttonSameDotNumber))
            {
                return(tlpButtons.GetRow(buttonSameDotNumber) + 1);
            }
            else if (current.Shape == previous.Shape && tlpButtons.Contains(buttonSameShape))
            {
                return(tlpButtons.GetRow(buttonSameShape) + 1);
            }
            else
            {
                return(tlpButtons.GetRow(buttonOther) + 1);
            }
        }
        /// <summary>
        /// Checks if the right button was clicked according to the context and increments scores.
        /// </summary>
        /// <param name="button">The clicked button.</param>
        private void CheckAnswer(Button button)
        {
            ComponentFocus current  = Series[CurrentSeries].Components[CurrentComponent];
            ComponentFocus previous = Series[CurrentSeries].Components[PreviousComponent];

            bool isRight = false;

            switch (button.Name) //switch on the button we clicked
            {
            case "buttonSameColor":
                isRight = (current.Color == previous.Color);
                break;

            case "buttonSameShape":
                isRight = (current.Shape == previous.Shape);
                break;

            case "buttonSameDotNumber":
                isRight = (current.DotNumber == previous.DotNumber);
                break;

            case "buttonOther":
                isRight = true;
                if (tlpButtons.Contains(buttonSameColor))
                {
                    if (current.Color == previous.Color)
                    {
                        isRight = false;
                    }
                }
                if (tlpButtons.Contains(buttonSameDotNumber))
                {
                    if (current.DotNumber == previous.DotNumber)
                    {
                        isRight = false;
                    }
                }
                if (tlpButtons.Contains(buttonSameShape))
                {
                    if (current.Shape == previous.Shape)
                    {
                        isRight = false;
                    }
                }
                break;

            default:
                break;
            }

            if (isRight)
            {
                Score.GoodAnswers++;
                MessageBox.Show("Bonne réponse !");
            }
            else
            {
                int buttonNumber = FindGoodAnswer();
                MessageBox.Show("Mauvaise réponse ! Il fallait cliquer sur le bouton " + buttonNumber + ".");
            }
        }