System.Web.WebPages.WebPageBase.EnsurePageCanBeRequestedDirectly C# (CSharp) Method

        internal void EnsurePageCanBeRequestedDirectly(string methodName)
        {
            if (PreviousSectionWriters == null)
            {
                throw new HttpException(String.Format(CultureInfo.CurrentCulture, WebPageResources.WebPage_CannotRequestDirectly, VirtualPath, methodName));
            }
        }