Session State for C#

public static class CurrentContext

{

private static T GetFromSession(string key)

{

object obj = HttpContext.Current.Session[key];

if (obj == null)

{

return default(T);

}

return (T)obj;

}

private static void SetInSession(string key, T value)

{

if (value == null)

{

HttpContext.Current.Session.Remove(key);

}

else

{

HttpContext.Current.Session[key] = value;

}

}

private static T GetFromCache(string key)

{

object obj = HttpContext.Current.Cache[key];

if (obj == null)

{

return default(T);

}

return (T)obj;

}

private static void SetInCache(string key, T value)

{

if (value == null)

{

HttpContext.Current.Cache.Remove(key);

}

else

{

HttpContext.Current.Cache[key] = value;

}

}

public static Order CurrentOrder

{

get { return GetFromSession("CurrentOrder"); }

set { SetInSession("CurrentOrder", value); }

}

public static OrderCustomer CurrentOrderCustomer

{

get { return GetFromSession("CurrentOrderCustomer"); }

set { SetInSession("CurrentOrderCustomer", value); }

}