Resolves of a virtual Url to a fully qualified Url.

• ~/ ~ as base path
• / as base path
• https:// http:// return as is
• Any relative path: resolved based on current Request path In this scenario ./ or ../ are left as is but prefixed by Request path.
• Empty or null: returned as is

public static string ResolveUrl(HttpContext context, string url, 
			string basepath, bool returnAbsoluteUrl, 
			bool ignoreRelativePaths, bool ignoreRootPaths)