更新时间:2023-01-13 15:30:23
要调用该操作,URL中需要一个整数,例如:/ Home / InitPageNav / 1
To call the action, an integer is needed in the URL, like so: /Home/InitPageNav/1
或者您更改了操作方法以允许可为空的整数(但这没有意义,除非您具有默认页面,否则如果没有给出id则可以检索? )。
Either that or you change the action method to allow for a nullable integer (but that doesn't make sense, unless you have a default page you can retrieve if no id was given?).
如果您不想在网址中添加页面ID,则需要其他方法来标识该页面,例如标题?
If you don't want a page id in the url, you need something else to identify the page, like the title??
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{title}", // URL with parameters
new { controller = "Home", action = "Index", title = UrlParameter.Optional } // Parameter defaults
);
,然后执行以下操作:
public ActionResult InitPageNav(String title)
{
PageModel page = PageNavHelper.GetPageByTitle(title);
return PartialView("UserControls/_PageNavPartial", page);
}
只需确保处理title参数为空/空的情况。通常,您应该使用Mvc框架中已经存在的帮助程序/扩展程序来构建URL。
Just make sure to handle the case where the title parameter is empty/null. And generally you should use the helpers/extensions already present in the Mvc framework for building your urls.
@Html.ActionLink("Link text", "action", "controller", new { title = "whatever" }, null)
或在您更高级的帮助器中,
or in your more advanced helper,
public static MvcHtmlString CreateMenuItems(this UrlHelper url, string action, string text)
{
var menuItem = new TagBuilder("li");
var link = new TagBuilder("a");
//Get current action from route data
var currentAction = (string)helper.RequestContext.RouteData.Values["action"];
link.Attributes.Add("href", url.Action(action, "home", new { title = "whatever" }));
if (currentAction == action)
{
menuItem.AddCssClass("selected");
}
link.SetInnerText(text);
menuItem.InnerHtml = link.ToString();
return MvcHtmlString.Create(menuItem.ToString());
}