public static void ProductOperationMenu()
{
Console.WriteLine("Please Select Product Operation");
Console.WriteLine("a. Add a Product");
Console.WriteLine("b. List all Products");
Console.WriteLine("c. Search a Product");
Console.WriteLine("d. Delete a Product");
Console.WriteLine("e. Main Menu");
char ch1 = Convert.ToChar(Console.ReadLine());
switch (ch1)
{
case 'a':
Console.WriteLine("Enter Product Name");
var ProductName = Console.ReadLine();
while (string.IsNullOrWhiteSpace(ProductName) || int.TryParse(ProductName, out _))
{
Console.WriteLine("Please Enter Only Char and It can not be Empty");
ProductName = Console.ReadLine();
}
Console.WriteLine("Enter Short Code");
var shortCode = Console.ReadLine();
Console.WriteLine("Enter Description");
var desc = Console.ReadLine();
while (string.IsNullOrWhiteSpace(desc) || int.TryParse(desc, out _))
{
Console.WriteLine("Please Enter Only Char and It can not be Empty");
desc = Console.ReadLine();
}
Console.WriteLine("Enter Price");
int price = -1;
bool flag = Int32.TryParse(Console.ReadLine(), out price);
while (!flag || price <= 0)
{
Console.WriteLine("Please Enter Only Number and It can not be Empty/can not be negetive");
flag = Int32.TryParse(Console.ReadLine(), out price);
}
Console.WriteLine("Enter Manufacture Name");
var manufactureName = Console.ReadLine();
while (string.IsNullOrWhiteSpace(manufactureName) || int.TryParse(manufactureName, out _))
{
Console.WriteLine("Please Enter Only Char and It can not be Empty");
manufactureName = Console.ReadLine();
}
Console.WriteLine("Enter Category Name");
var category = Console.ReadLine();
while (string.IsNullOrWhiteSpace(category) || int.TryParse(category, out _))
{
Console.WriteLine("Please Enter Only Char and It can not be Empty");
category = Console.ReadLine();
}
ProductOperation.AddProduct(ProductName, shortCode, desc, price, manufactureName, category);
break;
case 'b':
ProductOperation.GetAllProduct();
break;
case 'c':
Console.WriteLine("Enter Product Name");
var SearchProductName = Console.ReadLine();
while (string.IsNullOrWhiteSpace(SearchProductName) || int.TryParse(SearchProductName, out _))
{
Console.WriteLine("Please Enter Only Char and It can not be Empty");
ProductName = Console.ReadLine();
}
ProductOperation.SearchProduct(SearchProductName);
break;
case 'd':
Console.WriteLine("Enter Product Name");
var DeleteProductName = Console.ReadLine();
while (string.IsNullOrWhiteSpace(DeleteProductName) || int.TryParse(DeleteProductName, out _))
{
Console.WriteLine("Please Enter Only Char and It can not be Empty");
DeleteProductName = Console.ReadLine();
}
ProductOperation.DeleteProduct(DeleteProductName);
break;
case 'e':
StartMenu.Menu();
break;
default:
Console.WriteLine("Invalid Selection!!");
ProductOperationMenu();
break;
}
}