Question

我有两个应用程序，一个用aspx web表单编写，另一个用于MVC5 razor cshtml。

网络表单中嵌入了iframe，我想在用户点击按钮时在iframe中加载razor cshtml文件。

我搜索并找到一些有用的帖子来混合webforms和MVC页面，以便我可以在webforms aspx页面中显示MVC页面。

How to use ASP.Net MVC View inside WebForms .aspx page?

How to include a partial view inside a webform

基于上面的帖子，我在一个名为Helpers的新文件夹下的MVC应用程序中创建了一个MvcUtility类。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using Desk.Web.Client.Controllers;
using Desk.Web.Client.Models;

namespace Desk.Web.Client.Helpers
{
    public class RazorPartialBridge
    {
        private static void RenderPartial(string partialViewName, object model)
        {
            HttpContextBase httpContextBase = new HttpContextWrapper(HttpContext.Current);
            RouteData routeData = new RouteData();
            routeData.Values.Add("controller", "Dummy");
            ControllerContext controllerContext = new ControllerContext(new RequestContext(httpContextBase, routeData), new DummyController());
            IView view = FindPartialView(controllerContext, partialViewName);
            ViewContext viewContext = new ViewContext(controllerContext, view, new ViewDataDictionary { Model = model }, new TempDataDictionary(), httpContextBase.Response.Output);
            view.Render(viewContext, httpContextBase.Response.Output);
        }

        //Find the view, if not throw an exception
        private static IView FindPartialView(ControllerContext controllerContext, string partialViewName)
        {
            ViewEngineResult result = ViewEngines.Engines.FindPartialView(controllerContext, partialViewName);
            if (result.View != null)
            {
                return result.View;
            }
            StringBuilder locationsText = new StringBuilder();
            foreach (string location in result.SearchedLocations)
            {
                locationsText.AppendLine();
                locationsText.Append(location);
            }
            throw new InvalidOperationException(String.Format("Partial view {0} not found. Locations Searched: {1}", partialViewName, locationsText));
        }

        //Here the method that will be called from MasterPage or Aspx
        public static void RenderAction(string controllerName, string actionName, object routeValues)
        {
            RenderPartial("PartialRender", new RenderActionViewModel() { ControllerName = controllerName, ActionName = actionName, RouteValues = routeValues });
        }
    }
}

在帖子中指定。然后我在models文件夹中创建了一个类（RendeActionViewModel），代码是

namespace Desk.Web.Client.Models
{
    public class RenderActionViewModel
    {
        public string ControllerName { get; set; }
        public string ActionName { get; set; }
        public object RouteValues { get; set; }
    }
}

我在控制器文件夹

下创建了一个虚拟控制器

public class DummyController : Controller
    {
      public ActionResult PartialRender()
      {
          return PartialView();
      }

    }

然后我在views文件夹下创建了一个名为PartialRender.cshtml的视图。

    @model RenderActionViewModel
<h1>Hello World</h1>
<p>
    I was rendered from a <strong>@Model.Source</strong>!
</p>

在我的asp.net webform应用程序的Webform中，我创建了一个新的aspx页面并添加了以下代码。

    <%@ Page Title="Demo" Language="C#" 
    AutoEventWireup="true" Inherits="Demo" Codebehind="Demo.aspx.cs" %>
<html>
<head></head>
<body>
    <% RazorPartialBridge.RenderPartial("_Partial", new RenderActionViewModel() { Source = "ASPX Page" }) %>
</body>
</html>

但是当我运行应用程序时，我收到错误

部分视图未找到PartialRender。搜索地点：〜/ Views / Dummy / PartialRender.aspx~ / Views / Dummy / PartialRender.ascx 〜/ Views / Shared / PartialRender.aspx~ / Views / Shared / PartialRender.ascx 〜/ Views / Dummy / PartialRender.cshtml~ / Views / Dummy / PartialRender.vbhtml 〜/查看/共享/ PartialRender.cshtml 〜/查看/共享/ PartialRender.vbhtml

当我尝试调试应用程序时，以下代码中的视图名称返回为null

ViewEngineResult result = ViewEngines.Engines.FindPartialView(controllerContext, partialViewName);

任何人都可以帮助我，让我知道我哪里错了吗？

Answer 1

我刚刚按照您上面提到的相同指南遇到了同样的问题。

我相信原因是我的解决方案在MVC领域有观点。我在这里使用@ devundef的答案Can I specify a custom location to “search for views” in ASP.NET MVC?来解析定位局部视图。

我的区域注册如下：

public class MVCAreaRegistration : AreaRegistration 
{
    public override string AreaName 
    {
        get 
        {
            return "MVC";
        }
    }

    public override void RegisterArea(AreaRegistrationContext context) 
    {
        context.MapRoute(
            "MVC_default",
            "MVC/{controller}/{action}/{id}",
            new { action = "Index", id = UrlParameter.Optional }
        );           
    }
}

我在Global.asax中有以下内容

protected void Application_Start()
    {
        GlobalConfiguration.Configure(WebApiConfig.Register);
        AreaRegistration.RegisterAllAreas();
        ViewEngines.Engines.Clear();
        var razorEngine = new RazorViewEngine();
        razorEngine.MasterLocationFormats = razorEngine.MasterLocationFormats
              .Concat(new[] {
      "~/Areas/MVC/{0}.cshtml"
              }).ToArray();

        razorEngine.PartialViewLocationFormats = razorEngine.PartialViewLocationFormats
              .Concat(new[] {
      "~/Areas/MVC/Views/{1}/{0}.cshtml",
      "~/Areas/MVC/Views{0}.cshtml",          
              }).ToArray();

        ViewEngines.Engines.Add(razorEngine);
    }

然后可以找到部分视图。但是接下来我遇到了另一个错误。

No route in the route table matches the supplied values.

我发现我需要将“区域”添加到路径数据中，如下所示：

private static void RenderPartial(string partialViewName, object model)
    {
        HttpContextBase httpContextBase = new HttpContextWrapper(HttpContext.Current);
        RouteData routeData = new RouteData();
        routeData.Values.Add("controller", "WebFormsUtility");
        routeData.Values.Add("area", "MVC"); //Added area to routeData
        ControllerContext controllerContext = new ControllerContext(new RequestContext(httpContextBase, routeData), new WebFormsUtilityController());
        IView view = FindPartialView(controllerContext, partialViewName);
        ViewContext viewContext = new ViewContext(controllerContext, view, new ViewDataDictionary { Model = model }, new TempDataDictionary(), httpContextBase.Response.Output);
        view.Render(viewContext, httpContextBase.Response.Output);
    }

我对MVC很新，所以我希望我的术语合适。

在WebForms iFrame中共享Razor部分视图

1 个答案: