public void SetPredefined(int squareNr, byte?value)
{
SquareViewModel squareView = this.GetSquare(squareNr);
squareView.Value = value;
squareView.IsPredefinedValue = value.HasValue;
squareView.IsValueCorrect = null;
}
private void CheckInputForSquare(SquareViewModel square, byte?expectedValue)
{
if (!square.IsPredefinedValue && square.Value.HasValue)
{
square.IsValueCorrect = expectedValue.HasValue
? expectedValue.Value == square.Value
: (bool?)null;
}
}