System.Web.UI.BaseTemplateParser.GetReferencedType C# (CSharp) Method

		protected Type GetReferencedType (string virtualPath)
		{
			if (String.IsNullOrEmpty (virtualPath))
				throw new ArgumentNullException ("virtualPath");
			
			var pageParserFilter = PageParserFilter;
			if (pageParserFilter != null) {
				var cfg = WebConfigurationManager.GetSection ("system.web/compilation") as CompilationSection;
				if (cfg == null)
					throw new HttpException ("Internal error. Missing configuration section.");

				string extension = VirtualPathUtility.GetExtension (virtualPath);
				Type btype = cfg.BuildProviders.GetProviderTypeForExtension (extension);
				VirtualReferenceType reftype;

				if (btype == null)
					reftype = VirtualReferenceType.Other;
				else if (btype == typeof (PageBuildProvider))
					reftype = VirtualReferenceType.Page;
				else if (btype == typeof (UserControlBuildProvider))
					reftype = VirtualReferenceType.UserControl;
				else if (btype == typeof (MasterPageBuildProvider))
					reftype = VirtualReferenceType.Master;
				else
					reftype = VirtualReferenceType.SourceFile;
				
				if (!pageParserFilter.AllowVirtualReference (virtualPath, reftype))
					throw new HttpException ("The parser does not permit a virtual reference to the UserControl.");
			}
			
			return BuildManager.GetCompiledType (virtualPath);
		}