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

        public HelperResult RenderBody()
        {
            EnsurePageCanBeRequestedDirectly("RenderBody");

            if (_renderedBody)
            {
                throw new HttpException(WebPageResources.WebPage_RenderBodyAlreadyCalled);
            }
            _renderedBody = true;

            // _body should have previously been set in Render(ViewContext,TextWriter) if it
            // was available in the ViewData.
            if (_body != null)
            {
                return new HelperResult(tw => _body(tw));
            }
            else
            {
                throw new HttpException(String.Format(CultureInfo.CurrentCulture, WebPageResources.WebPage_CannotRequestDirectly, VirtualPath, "RenderBody"));
            }
        }