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());
}
public static string Render(this WebViewPage view, HttpContextBase httpContext, object model = null)
{
StringWriter writer = new StringWriter();
view.Initialize(httpContext, writer);
view.ViewData.Model = model;
WebPageContext webPageContext = new WebPageContext(view.ViewContext.HttpContext, null, model);
// Using private reflection to access some internals
// Also make sure the use the same writer used for initializing the ViewContext in the OutputStack
// Note: ideally we would not have to do this, but WebPages is just not mockable enough :(
// Add the writer to the output stack
PropertyInfo outputStackProp = typeof(WebPageContext).GetProperty("OutputStack", BindingFlags.Instance | BindingFlags.NonPublic);
Stack <TextWriter> outputStack = (Stack <TextWriter>)outputStackProp.GetValue(webPageContext, null);
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
PropertyInfo sectionWritersStackProp = typeof(WebPageContext).GetProperty("SectionWritersStack", BindingFlags.Instance | BindingFlags.NonPublic);
Stack <Dictionary <string, SectionWriter> > sectionWritersStack = (Stack <Dictionary <string, SectionWriter> >)sectionWritersStackProp.GetValue(webPageContext, null);
Dictionary <string, SectionWriter> sectionWriters = new Dictionary <string, SectionWriter>(StringComparer.OrdinalIgnoreCase);
sectionWritersStack.Push(sectionWriters);
sectionWritersStack.Push(sectionWriters);
// Set the body delegate to do nothing
PropertyInfo bodyActionProp = typeof(WebPageContext).GetProperty("BodyAction", BindingFlags.Instance | BindingFlags.NonPublic);
bodyActionProp.SetValue(webPageContext, (Action <TextWriter>)(w => { }), null);
// Set the page context on the view (the property is public, but the setter is internal)
PropertyInfo pageContextProp = typeof(WebPageRenderingBase).GetProperty("PageContext", BindingFlags.Instance | BindingFlags.Public);
pageContextProp.SetValue(view, webPageContext, BindingFlags.NonPublic, null, null, null);
// Execute/render the view
view.Execute();
return(writer.ToString());
}
