private void DrawBoard(Canvas board) { var size = Math.Min(board.ActualHeight, board.ActualWidth); var rectSize = size/BORAD_SIZE; for (int i = 1; i <= BORAD_SIZE; i++) { // Vertical board.DrawLine(i*rectSize, 0, i * rectSize, BORAD_SIZE*rectSize); // Horizontal board.DrawLine(0, i*rectSize, BORAD_SIZE * rectSize, i*rectSize); } }