[英]Child actions are not allowed to perform redirect actions - error while working with ASP.NET MVC 2 and Razor
In _Layout.cshtml file I have following entry: 在_Layout.cshtml文件中,我有以下条目:
@Html.Action("LoadPagesStructure", "Page")
Inside PageController class, LoadPagesStructure methos looks following: 在PageController类中, LoadPagesStructure方法如下:
[ChildActionOnly] /* this attribute indicates that an action should not
be invoked as a result of a user request (by url) */
public ActionResult LoadPagesStructure()
{
ViewModel.Pages = new List<string>() {"page1", "page2", "page3"};
return View();
}
Finally, my LoadPagesStructure.cshtml view looks like below: 最后,我的LoadPagesStructure.cshtml视图如下所示:
@inherits System.Web.Mvc.WebViewPage<dynamic>
<ul>
@foreach (var page in View.Pages) {
<li>
@Html.ActionLink(page, "Index", "Home")
</li>
}
</ul>
Unfortunately, an exception is thrown after execution: 不幸的是,执行后会抛出异常:
System.InvalidOperationException: Child actions are not allowed to perform redirect actions.
What is the way of creating links to my pages dynamically ? 动态创建指向我页面的链接的方式是什么?
PS: I know that I can do this like that: <a href="@page">@page</a>
. PS:我知道我可以这样做:
<a href="@page">@page</a>
。 Nevertheless I think this is not the right way, because control of the routing is impossible here. 不过我认为这不是正确的方法,因为这里不可能控制路由。
Regards 问候
I think you might need to return a PartialView
for your LoadPagesStructure()
action. 我认为您可能需要为
LoadPagesStructure()
操作返回PartialView
。
Try this: 尝试这个:
[ChildActionOnly]
public ActionResult LoadPagesStructure()
{
ViewModel.Pages = new List<string>() {"page1", "page2", "page3"};
return PartialView();
}
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