public void BookBillingMenu()
{
while (true)
{
try
{
Console.WriteLine("#1: COMPUTER BOOKS");
Console.WriteLine("#2: PHYSICS BOOKS");
Console.WriteLine("#3: CHEMISTRY BOOKS");
Console.WriteLine("#4: MATHS BOOKS");
Console.WriteLine("#5: BIOLOGY BOOKS");
Console.WriteLine("#6: OTHER BOOKS");
Console.WriteLine("#7: RETURN TO MAIN MENU");
Console.WriteLine("#8: EXIT");
switch (Convert.ToInt32(Console.ReadLine()))
{
case 1:
ComputerBooks computerbooks = new ComputerBooks();
computerbooks.GetBookDetails();
listComputerBooks.Add(computerbooks);
//foreach (var item in listComputerBooks)
//{
// item.Bill();
//}
break;
case 2:
PhysicsBooks physicsbooks = new PhysicsBooks();
physicsbooks.GetBookDetails();
listPhysicsBooks.Add(physicsbooks);
break;
case 3:
ChemistryBooks chemistrybooks = new ChemistryBooks();
chemistrybooks.GetBookDetails();
listChemitryBooks.Add(chemistrybooks);
break;
case 4:
MathsBooks mathbooks = new MathsBooks();
mathbooks.GetBookDetails();
listMathsBooks.Add(mathbooks);
break;
case 5:
BiologyBooks biologybooks = new BiologyBooks();
biologybooks.GetBookDetails();
listBiologyBooks.Add(biologybooks);
break;
case 6:
BooksOthers otherbooks = new BooksOthers();
otherbooks.GetBookDetails();
listOtherBooks.Add(otherbooks);
break;
case 7:
return;
case 8:
Console.WriteLine("Thank you for visiting us");
Environment.Exit(0);
break;
default:
Console.WriteLine("Option not available");
break;
}
}
catch (Exception e)
{
Console.WriteLine("Invalid Input");
}
}
}