public static string Render <TModel>(this WebViewPage <TModel> view, HttpContextBase httpContext, TModel model = default(TModel))
{
var writer = new StringWriter();
view.ViewData.Model = model;
view.Initialize(httpContext, writer);
var webPageContext = new WebPageContext(view.ViewContext.HttpContext, page: null, model: null);
// Using private reflection to access some internals
// Note: ideally we would not have to do this, but WebPages is just not mockable enough :(
var dynamicPageContext = webPageContext.AsDynamic();
dynamicPageContext.OutputStack.Push(writer);
// Push some section writer dictionary onto the stack. We need two, because the logic in WebPageBase.RenderBody
// checks that as a way to make sure the layout page is not called directly
var sectionWriters = new Dictionary <string, SectionWriter>(StringComparer.OrdinalIgnoreCase);
dynamicPageContext.SectionWritersStack.Push(sectionWriters);
dynamicPageContext.SectionWritersStack.Push(sectionWriters);
// Set the body delegate to do nothing
dynamicPageContext.BodyAction = (Action <TextWriter>)(w => { });
view.AsDynamic().PageContext = webPageContext;
view.Execute();
return(writer.ToString());
}
