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A view Render for Razor (aspnetcore RC2)
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public class HomeController : Controller { | |
private readonly ViewRender view; | |
public HomeController (ViewRender view) { | |
this.view = view | |
} | |
public string Test () { | |
// render ~/Views/Emails/ResetCode | |
var html = this.view.Render("Emails/ResetCode", new ResetCodeModel { Code : "123456" }); | |
return html; | |
} | |
} |
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public class Startup { | |
// .... | |
public void ConfigureServices(IServiceCollection services) | |
{ | |
// .... | |
services.AddScoped<ViewRender, ViewRender>(); | |
} | |
} |
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using System; | |
using System.IO; | |
using Microsoft.AspNetCore.Http; | |
using Microsoft.AspNetCore.Mvc; | |
using Microsoft.AspNetCore.Mvc.Abstractions; | |
using Microsoft.AspNetCore.Mvc.ModelBinding; | |
using Microsoft.AspNetCore.Mvc.Razor; | |
using Microsoft.AspNetCore.Mvc.Rendering; | |
using Microsoft.AspNetCore.Mvc.ViewFeatures; | |
using Microsoft.AspNetCore.Routing; | |
namespace Forecast.Services | |
{ | |
public class ViewRender | |
{ | |
private IRazorViewEngine _viewEngine; | |
private ITempDataProvider _tempDataProvider; | |
private IServiceProvider _serviceProvider; | |
public ViewRender( | |
IRazorViewEngine viewEngine, | |
ITempDataProvider tempDataProvider, | |
IServiceProvider serviceProvider) | |
{ | |
_viewEngine = viewEngine; | |
_tempDataProvider = tempDataProvider; | |
_serviceProvider = serviceProvider; | |
} | |
public string Render<TModel>(string name, TModel model) | |
{ | |
var actionContext = GetActionContext(); | |
var viewEngineResult = _viewEngine.FindView(actionContext, name, false); | |
if (!viewEngineResult.Success) | |
{ | |
throw new InvalidOperationException(string.Format("Couldn't find view '{0}'", name)); | |
} | |
var view = viewEngineResult.View; | |
using (var output = new StringWriter()) | |
{ | |
var viewContext = new ViewContext( | |
actionContext, | |
view, | |
new ViewDataDictionary<TModel>( | |
metadataProvider: new EmptyModelMetadataProvider(), | |
modelState: new ModelStateDictionary()) | |
{ | |
Model = model | |
}, | |
new TempDataDictionary( | |
actionContext.HttpContext, | |
_tempDataProvider), | |
output, | |
new HtmlHelperOptions()); | |
view.RenderAsync(viewContext).GetAwaiter().GetResult(); | |
return output.ToString(); | |
} | |
} | |
private ActionContext GetActionContext() | |
{ | |
var httpContext = new DefaultHttpContext(); | |
httpContext.RequestServices = _serviceProvider; | |
return new ActionContext(httpContext, new RouteData(), new ActionDescriptor()); | |
} | |
} | |
} |
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