View difference between Paste ID: df7rKw0M and eCuWWQ49

 Application["AppVar"] = "hello";
 
 string appVar = HttpContext.Application["AppVar"] as string;
 
 using System.Web;
 ....
 if (HttpContext.Current != null && HttpContext.Current.Application != null)
     string appVar = HttpContext.Current.Application["AppVar"] as string;