C# 从 cshtml 页面重定向
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Redirecting from cshtml page
提问by Jed I
I want to redirect to a different view depending on the result of a dataset, but I keep getting returned to the page I am currently on, and can't work out why. I drop into the if statement the action gets called but once i return the view to the new page, it returns me back to the current page.
我想根据数据集的结果重定向到不同的视图，但我一直返回到我当前所在的页面，无法弄清楚原因。我进入 if 语句，该操作被调用，但是一旦我将视图返回到新页面，它就会将我返回到当前页面。
CSHTML page
CSHTML 页面
@{
ViewBag.Title = "Search Results";
EnumerableRowCollection<DataRow> custs = ViewBag.Customers;
bool anyRows = custs.Any();
if(anyRows == false)
{
Html.Action("NoResults","Home");
}
// redirect to no search results view
}
}
Controller
控制器
public ActionResult NoResults()
{
return View("NoResults");
}
View I cant get too..
查看我也无法获得..
@{
ViewBag.Title = "NoResults";
}
<h2>NoResults</h2>
采纳答案by Mostafa Soghandi
Change to this:
改成这样：
@{ Response.Redirect("~/HOME/NoResults");}
回答by Madushan
Would be safer to do this.
这样做会更安全。
@{ Response.Redirect("~/Account/LogIn?returnUrl=Products");}
@{ Response.Redirect("~/Account/LogIn?returnUrl=Products");}
So the controller for that action runs as well, to populate any model the view needs.
因此，该操作的控制器也会运行，以填充视图所需的任何模型。
Although as @Satpal mentioned, I do recommend you do the redirecting on your controller.
尽管正如@Satpal 所提到的，我确实建议您在控制器上进行重定向。
回答by Gecko IT
This clearly is a bad case of controller logic in a view. It would be better to do this in a controller and return the desired view.
这显然是视图中控制器逻辑的不良情况。最好在控制器中执行此操作并返回所需的视图。
[ChildActionOnly]
public ActionResult Results()
{
EnumerableRowCollection<DataRow> custs = ViewBag.Customers;
bool anyRows = custs.Any();
if(anyRows == false)
{
return View("NoResults");
}
else
{
return View("OtherView");
}
}
Modify NoResults.cshtml to a Partial.
将 NoResults.cshtml 修改为 Partial。
And call this as a Partial view in the parent view
并将其称为父视图中的局部视图
@Html.Partial("Results")
You might have to pass the Customer collection as a model to the Result action or in a ViewDataDictionary due to reasons explained here: Can't access ViewBag in a partial view in ASP.NET MVC3
由于此处解释的原因，您可能必须将 Customer 集合作为模型传递给 Result 操作或在 ViewDataDictionary 中：无法在 ASP.NET MVC3 中的部分视图中访问 ViewBag
The ChildActionOnlyattribute will make sure you cannot go to this page by navigating and that this view must be rendered as a partial, thus by a parent view. cfr: Using ChildActionOnly in MVC
该ChildActionOnly属性将确保您无法通过导航进入此页面，并且此视图必须呈现为局部视图，因此由父视图呈现。cfr：在 MVC 中使用 ChildActionOnly
回答by sachin singh
You can go to method of same controller..using this line , and if you want to pass some parameters to that action it can be done by writing inside ( new { } ).. Note:- you can add as many parameter as required.
您可以转到同一控制器的方法..使用这一行，如果您想将一些参数传递给该操作，可以通过在内部写入（ new { } ）来完成.. 注意：-您可以根据需要添加任意数量的参数.
@Html.ActionLink("MethodName", new { parameter = Model.parameter })
@Html.ActionLink("MethodName", new { parameter = Model.parameter })
