/// <summary>
/// Renders a partial view to a string in the specified context.
/// </summary>
/// <param name="partialViewContext">The partial view context.</param>
/// <param name="viewModel">The view model.</param>
/// <param name="cookies">Any cookies that were captures as part of the response.</param>
/// <returns>The view rendered as a string.</returns>
public static string ToString(PartialViewContext partialViewContext, object viewModel, out HttpCookieCollection cookies)
{
string viewName = partialViewContext.ViewName;
using (var writer = new StringWriter())
{
var httpRequest = new HttpRequest("", "http://www.example.com", "");
var httpResponse = new HttpResponse(writer);
// There are still dependencies on HttpContext.Currrent in the ASP.NET (MVC) framework, eg., AntiForgeryRequestToken (as of ASP.NET MVC 4).
var httpContext = new HttpContext(httpRequest, httpResponse) { User = partialViewContext.User };
System.Web.HttpContext.Current = httpContext;
var controllerContext = CreateControllerContext(httpContext);
var viewEngineResult = ViewEngines.Engines.FindPartialView(controllerContext, viewName);
if (viewEngineResult == null)
{
string message = "The partial view was not found.";
throw new ArgumentException(message, viewName);
}
var view = viewEngineResult.View;
if (view == null)
{
var locations = new StringBuilder();
foreach (string searchedLocation in viewEngineResult.SearchedLocations)
{
locations.AppendLine();
locations.Append(searchedLocation);
}
throw new ArgumentException("The partial view was not found. The following locations were searched: " + locations, viewName);
}
try
{
var viewData = new ViewDataDictionary(viewModel);
var tempData = new TempDataDictionary();
var viewContext = new ViewContextStub(controllerContext, view, viewData, tempData, writer)
{
ClientValidationEnabled = partialViewContext.ClientValidationEnabled,
UnobtrusiveJavaScriptEnabled = partialViewContext.UnobtrusiveJavaScriptEnabled
};
view.Render(viewContext, httpResponse.Output);
cookies = controllerContext.HttpContext.Response.Cookies;
httpResponse.Flush();
}
finally
{
viewEngineResult.ViewEngine.ReleaseView(controllerContext, view);
}
return writer.ToString();
}
}
public void Should_be_able_to_post_form_with_anti_forgery_request_token_using_render()
{
Application.Execute(browser =>
{
const string username = "******";
var context = new PartialViewContext("~/Views/_FormAntiForgeryRequestToken.cshtml").SetFormsAuthPrincipal(username);
var payload = new TextBoxPayload { Text = "text" };
var response = browser.Render(context, payload).Submit(ctx => ctx.FormsAuth(username));
Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
});
}
