Use of Get Set property with Session Sate.

Question

Hi, I have recently started on C# and getting doubts. Can anyone help me out in understanding the below code, specialy the importance of get accessor with session. Any help will be appreciated. Thanks.

 

 

using System.Web;

using System.Web.SessionState;

using System.Collections.Generic;

public static class ExampleSession

{

private static HttpSessionState session { get { return HttpContext.Current.Session; } }

public static string UserName

{

get { return session["username"] as string; }

set { session["username"] = value; }

}

public static List<string> ProductsSelected

{

get

{

if (session["products_selected"] == null)

session["products_selected"] = new List<string>();

return (List<string>)session["products_selected"];

}

}

}