查看未呈现MVC 4 [英] View not rendering MVC 4

问题描述

我有，当我一步通过code我看到它到控制器的动作，并返回看法，但它不会加载它只是停留在当前页面上的观点并没有被称为视图。

当点击一个特定的页面的ajax的职位是由呼叫下一个页面，这并不加载上的一个按钮。

我的位指示动作看起来是这样的：

 公众的ActionResult比较（INT [] Y）
        {
            CostModel.Getsuff（Y）;            返回查看（CostModel）;
        }
 

我的路线图是这样的：

  routes.MapRoute（
        名称：比较，
        网址：类别/比较/ {* XXXX}，
        默认：新{控制器=类别，行动=比较}
       ）.RouteHandler=新CategoriesRouteHandler（）;公共类CategoriesRouteHandler：IRouteHandler
        {
            公众的IHttpHandler GetHttpHandler（RequestContext的的RequestContext）
            {
                IRouteHandler处理程序=新MvcRouteHandler（）;
                VAR瓦尔斯= requestContext.RouteData.Values​​;
                。VAR列表=丘壑[XXXX]的ToString（）斯普利特（''）;
                INT [] Y =新INT [List.length的数字]
                的for（int i = 0; I＆LT; List.length的数字，我++）
                  int.TryParse（名单[I]的ToString（），出值Y [i]）;                vals.Add（Y，y）基
                返回handler.GetHttpHandler（RequestContext的）;
            }
        }
 

我的AJAX

  $阿贾克斯（{
       键入：POST，
      网址：。'@ Url.Action（比较，类别，新{类别=占位符}）'代替（占位符，ARR）
       数据类型：JSON
       传统：真实，
       成功：函数（MSG）{警报（MSG）}
    }）;
 

正如我提到的previously当我跟踪它时，它执行Ajax调用罚款和命中它只是不启动视图控制器上的行动。我想这可能是与该地区不被任何定义的事实呢？因此，也许它扔出去，看不到MVC 4随时随地指定不同的领域，但我是新来的MVC。任何帮助将AP preciated。

解决方案

  

正如我提到的previously当我跟踪它时，它执行Ajax调用
  罚款和命中它只是不启动控制器上的作用
  视图。

这就是AJAX =>停留在同一页上的整点。如果要替换当前页面不使用任何AJAX。使用普通的 Html.ActionLink 。

如果你的控制器操作只返回 PartialView ，你想只刷新你的页面的一部分，你可以做，在成功回调：

  $。阿贾克斯（{
    键入：POST，
    网址：。'@ Url.Action（比较，类别，新{类别=占位符}）'代替（占位符，ARR）
    传统：真实，
    成功：函数（结果）{
        $（'＃someIdToRefresh'）HTML（结果）;
    }
}）;
 

另请注意，我已删除数据类型：'JSON'，因为你的控制器动作不返回任何JSON。它返回的text / html 。

I have a view which is not being called when I step through the code I see it get to the action in the controller and return the view but it does not load the view it just stays on the current page.

When a button is clicked on a specific page an ajax post is made calling the next page this does not load.

My contoller action looks like this:

public ActionResult Comparison(int[] y)
        {
            CostModel.Getsuff(y);        

            return View(CostModel);
        }

My route map looks like this:

routes.MapRoute(
        name: "Compare",
        url: "Category/Comparison/{*xxxx}",
        defaults: new { Controller = "Category", Action = "Comparison" }
       ).RouteHandler 

= new CategoriesRouteHandler(); 



public class CategoriesRouteHandler : IRouteHandler
        {
            public IHttpHandler GetHttpHandler(RequestContext requestContext)
            {
                IRouteHandler handler = new MvcRouteHandler();
                var vals = requestContext.RouteData.Values;
                var list = vals["xxxx"].ToString().Split(',');
                int[] y= new int[list.Length];
                for (int i=0; i < list.Length; i++)
                  int.TryParse(list[i].ToString(),out y[i]);

                vals.Add("y", y);
                return handler.GetHttpHandler(requestContext);
            }
        } 

My ajax

  $.ajax({ 
       type: "POST", 
      url: '@Url.Action("Comparison", "Category",  new { Categories = "PLACEHOLDER"})'.replace('PLACEHOLDER', arr),
       dataType: "json", 
       traditional: true, 
       success: function(msg){alert(msg)} 
    } ); 

As I mentioned previously when I trace it, it performs the ajax call fine and hits the action on the controller it just does not launch the view. I thought it may have something to do with the fact that the area is not defined anywhere? So perhaps its throwing it out, can't see anywhere in MVC 4 to specify different area, but I am new to MVC. Any help will be appreciated.

解决方案

As I mentioned previously when I trace it, it performs the ajax call fine and hits the action on the controller it just does not launch the view.

That's the whole point of AJAX => stay on the same page. If you want to replace the current page don't use any AJAX. Use a normal Html.ActionLink.

And if your controller action only returns a PartialView and you would like to refresh only a portion of your page, you could do that in the success callback:

$.ajax({ 
    type: "POST", 
    url: '@Url.Action("Comparison", "Category",  new { Categories = "PLACEHOLDER"})'.replace('PLACEHOLDER', arr),
    traditional: true, 
    success: function(result) {
        $('#someIdToRefresh').html(result);
    } 
}); 

Also notice that I have removed dataType: 'json' because your controller action is not returning any JSON. It's returning text/html.

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