C# - Accessing HttpApplication.Application Variables From A Class?

Jun 9, 2010

I set up various global parameters in Global.asax, as such:

Application["PagePolicies"] = "~/Lab/Policies.aspx";
Application["PageShare"] = "/Share.aspx";
Application["FileSearchQueries"] = Server.MapPath("~/Resources/SearchQueries.xml");

I have no problem accessing these variables form .ascx.cs or .aspx.cs file -- ie. files that are part of the Web content. However, I can't seem to access 'Application' from basic class objects (ie. standalone .cs files). I read somewhere to use a slight variations in .cs files, as follows, but it always comes throws an exception when in use:

String file = (String)System.Web.HttpContext.Current.Application["FileSearchQueries"];

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