private void MenuHint_Click(object sender, RoutedEventArgs e)
{
if (selectedCell != null)
{
List <byte> possibleNums = sudoku.PossibleNumbers(selectedCell.GetRow(), selectedCell.GetColumn());
string possibleNumsStr = string.Empty;
if (possibleNums != null)
{
for (int i = 0; i < possibleNums.Count; i++)
{
possibleNumsStr += possibleNums[i];
if (i < possibleNums.Count - 1)
{
possibleNumsStr += ", ";
}
}
statusLeft.Content = $"Possible numbers for selected cell are: {possibleNumsStr}.";
}
else
{
statusLeft.Content = $"A number is already placed in the selected cell.";
}
}
else
{
statusLeft.Content = "You have to select a cell to get a hint.";
}
}