public void lapdisplay1()
{
int price = 0;
int qty = 0;
String user_id = Console.ReadLine();
Console.Clear();
XElement xelement = XElement.Load("Laptop.xml");
IEnumerable <XElement> Laptops = xelement.Elements();
var x = from Laptop in xelement.Elements("Laptop")
where (string)Laptop.Element("ID") == user_id
select Laptop;
Console.WriteLine("---------------------------Your Selection-----------------------------");
Console.WriteLine();
foreach (XElement lap in x)
{
String id = lap.Element("ID").Value;
String brandname = lap.Element("brand").Value;
String price_detail = lap.Element("price").Value;
String model_detail = lap.Element("model").Value;
price = Convert.ToInt32(price_detail);
Console.WriteLine("Id: {0}", id);
Console.WriteLine("Brand: {0}", brandname);
Console.WriteLine("Model: {0}", model_detail);
Console.WriteLine("Price: Rs. {0}", price_detail);
Console.WriteLine("----------------------------------------------------------------------");
}
String user_choice;
do
{
Console.WriteLine("Enter the Quantity Required");
qty = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Total Price: Rs. {0}", qty * price);
Console.WriteLine();
Console.WriteLine("Do you want to Change quantity? (y/n)");
user_choice = Console.ReadLine();
Console.WriteLine();
if (user_choice == "n")
{
Console.WriteLine("Thank you for visiting us...");
}
while ((user_choice != "y") && (user_choice != "n"))
{
Console.WriteLine();
Console.WriteLine("Invalid Option. Please Choose 'y' or 'n'");
user_choice = Console.ReadLine();
}
} while (user_choice == "y");
}
public void delete()
{
Console.Write("Enter the LAPTOP_ID to be deleted :");
String user_id = Console.ReadLine();
XElement xelement = XElement.Load("Laptop.xml");
IEnumerable <XElement> Laptops = xelement.Elements();
var x = from Laptop in xelement.Elements("Laptop")
where (string)Laptop.Element("ID") == user_id
select Laptop;
x.Remove();
xelement.Save("Laptop.xml");
Console.WriteLine("The Laptop_ID " + user_id + "is deleted Successfully");
}
public void edit()
{
Console.Write("Enter the Id to be edited :");
String user_id = Console.ReadLine();
Console.Write("Enter the new updated price of the " + user_id + " :");
String pricenew = Console.ReadLine();
XElement xelement = XElement.Load("Laptop.xml");
IEnumerable <XElement> Laptops = xelement.Elements();
var x = from Laptop in xelement.Elements("Laptop")
where (string)Laptop.Element("ID") == user_id
select Laptop;
foreach (XElement id in x)
{
String price_detail = id.Element("price").Value;
id.SetElementValue("price", pricenew);
}
xelement.Save("Laptop.xml");
Console.WriteLine("Editing done");
}