private static ControllerContext CreateControllerContext(HttpRequest httpRequest, HttpResponse httpResponse, CrowbarViewContext crowbarViewContext)
{
// 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 = crowbarViewContext.User };
System.Web.HttpContext.Current = httpContext;
var requestContext = new RequestContext(new HttpContextWrapper(httpContext), crowbarViewContext.GetRouteData());
return new ControllerContext(requestContext, new CrowbarController());
}
/// <summary>
/// Renders a partial view to a string in the specified context.
/// </summary>
/// <param name="crowbarViewContext">The 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(CrowbarViewContext crowbarViewContext, object viewModel, out HttpCookieCollection cookies)
{
string viewName = crowbarViewContext.ViewName;
using (var writer = new StringWriter())
{
var httpRequest = new HttpRequest("", "http://www.example.com", "");
var httpResponse = new HttpResponse(writer);
var controllerContext = CreateControllerContext(httpRequest, httpResponse, crowbarViewContext);
var viewEngineResult = crowbarViewContext.FindViewEngineResult(controllerContext);
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 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 = crowbarViewContext.ClientValidationEnabled,
UnobtrusiveJavaScriptEnabled = crowbarViewContext.UnobtrusiveJavaScriptEnabled
};
view.Render(viewContext, httpResponse.Output);
cookies = controllerContext.HttpContext.Response.Cookies;
httpResponse.Flush();
}
finally
{
viewEngineResult.ViewEngine.ReleaseView(controllerContext, view);
}
return writer.ToString();
}
}
