假设我有一堂课
public class ItemController:Controller
{
public ActionResult Login(int id)
{
return View("Hi", id);
}
}
在不在ItemController
所在的Item文件夹中的页面上,我想创建一个指向Login
方法的链接。那么我应该使用哪种Html.ActionLink
方法以及我应该传递哪些参数?
具体来说,我正在寻找替代方法
Html.ActionLink(article.Title,
new { controller = "Articles", action = "Details",
id = article.ArticleID })
已经在最近的ASP.NET MVC化身中退役了。
我想你想要的是这个:
Html.ActionLink(article.Title,
"Login", // <-- Controller Name.
"Item", // <-- ActionMethod
new { id = article.ArticleID }, // <-- Route arguments.
null // <-- htmlArguments .. which are none. You need this value
// otherwise you call the WRONG method ...
// (refer to comments, below).
)
这使用以下方法ActionLink签名:
public static string ActionLink(this HtmlHelper htmlHelper,
string linkText,
string controllerName,
string actionName,
object values,
object htmlAttributes)
两个论点已被切换
Html.ActionLink(article.Title,
"Item", // <-- ActionMethod
"Login", // <-- Controller Name.
new { id = article.ArticleID }, // <-- Route arguments.
null // <-- htmlArguments .. which are none. You need this value
// otherwise you call the WRONG method ...
// (refer to comments, below).
)
这使用以下方法ActionLink签名:
public static string ActionLink(this HtmlHelper htmlHelper,
string linkText,
string actionName,
string controllerName,
object values,
object htmlAttributes)
参数与MVC2的顺序相同,但不再需要id值:
Html.ActionLink(article.Title,
"Item", // <-- ActionMethod
"Login", // <-- Controller Name.
new { article.ArticleID }, // <-- Route arguments.
null // <-- htmlArguments .. which are none. You need this value
// otherwise you call the WRONG method ...
// (refer to comments, below).
)
这避免了将任何路由逻辑硬编码到链路中。
<a href="/Item/Login/5">Title</a>
这将为您提供以下html输出,假设:
article.Title = "Title"
article.ArticleID = 5
. .
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = "" } // Parameter defaults
);
此类型使用:
@ Html.ActionLink( “的MainPage”, “索引”, “家”)
MainPage:文本名称索引:Action View Home:HomeController
基础使用ActionLink
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>_Layout</title>
<link href="@Url.Content("~/Content/bootsrap.min.css")" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="container">
<div class="col-md-12">
<button class="btn btn-default" type="submit">@Html.ActionLink("AnaSayfa","Index","Home")</button>
<button class="btn btn-default" type="submit">@Html.ActionLink("Hakkımızda", "Hakkimizda", "Home")</button>
<button class="btn btn-default" type="submit">@Html.ActionLink("Iletişim", "Iletisim", "Home")</button>
</div>
@RenderBody()
<div class="col-md-12" style="height:200px;background-image:url(/img/footer.jpg)">
</div>
</div>
</body>
</html>
我想加入Joseph Kingry's answer。他提供了解决方案,但起初我无法让它工作,并得到像Adhip Gupta一样的结果。然后我意识到路线必须首先存在,参数需要与路线完全匹配。所以我有一个id,然后是我的路线的文本参数,也需要包含它。
Html.ActionLink(article.Title, "Login", "Item", new { id = article.ArticleID, title = article.Title }, null)
您可能需要查看RouteLink()
方法。这个方法允许您通过字典指定所有内容(链接文本和路由名称除外)。
我认为约瑟夫打开了控制器和动作。首先是动作然后是控制器。这有点奇怪,但签名的样子。
只是为了澄清事情,这是有效的版本(适应约瑟夫的例子):
Html.ActionLink(article.Title,
"Login", // <-- ActionMethod
"Item", // <-- Controller Name
new { id = article.ArticleID }, // <-- Route arguments.
null // <-- htmlArguments .. which are none
)
那这个呢
<%=Html.ActionLink("Get Involved",
"Show",
"Home",
new
{
id = "GetInvolved"
},
new {
@class = "menuitem",
id = "menu_getinvolved"
}
)%>
Html.ActionLink(article.Title, "Login/" + article.ArticleID, 'Item")
如果你想要所有的花式裤子,这里是你可以扩展它以便能够做到这一点:
@(Html.ActionLink<ArticlesController>(x => x.Details(), article.Title, new { id = article.ArticleID }))
您需要将其放在System.Web.Mvc
名称空间中:
public static class MyProjectExtensions
{
public static MvcHtmlString ActionLink<TController>(this HtmlHelper htmlHelper, Expression<Action<TController>> expression, string linkText)
{
var urlHelper = new UrlHelper(htmlHelper.ViewContext.RequestContext, htmlHelper.RouteCollection);
var link = new TagBuilder("a");
string actionName = ExpressionHelper.GetExpressionText(expression);
string controllerName = typeof(TController).Name.Replace("Controller", "");
link.MergeAttribute("href", urlHelper.Action(actionName, controllerName));
link.SetInnerText(linkText);
return new MvcHtmlString(link.ToString());
}
public static MvcHtmlString ActionLink<TController, TAction>(this HtmlHelper htmlHelper, Expression<Action<TController, TAction>> expression, string linkText, object routeValues)
{
var urlHelper = new UrlHelper(htmlHelper.ViewContext.RequestContext, htmlHelper.RouteCollection);
var link = new TagBuilder("a");
string actionName = ExpressionHelper.GetExpressionText(expression);
string controllerName = typeof(TController).Name.Replace("Controller", "");
link.MergeAttribute("href", urlHelper.Action(actionName, controllerName, routeValues));
link.SetInnerText(linkText);
return new MvcHtmlString(link.ToString());
}
public static MvcHtmlString ActionLink<TController>(this HtmlHelper htmlHelper, Expression<Action<TController>> expression, string linkText, object routeValues, object htmlAttributes) where TController : Controller
{
var urlHelper = new UrlHelper(htmlHelper.ViewContext.RequestContext, htmlHelper.RouteCollection);
var attributes = AnonymousObjectToKeyValue(htmlAttributes);
var link = new TagBuilder("a");
string actionName = ExpressionHelper.GetExpressionText(expression);
string controllerName = typeof(TController).Name.Replace("Controller", "");
link.MergeAttribute("href", urlHelper.Action(actionName, controllerName, routeValues));
link.MergeAttributes(attributes, true);
link.SetInnerText(linkText);
return new MvcHtmlString(link.ToString());
}
private static Dictionary<string, object> AnonymousObjectToKeyValue(object anonymousObject)
{
var dictionary = new Dictionary<string, object>();
if (anonymousObject == null) return dictionary;
foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(anonymousObject))
{
dictionary.Add(propertyDescriptor.Name, propertyDescriptor.GetValue(anonymousObject));
}
return dictionary;
}
}
这包括Route Values
和HTML Attributes
的两个覆盖,还有,你需要添加的所有视图:@using YourProject.Controllers
或者你可以将它添加到你的web.config <pages><namespaces>
使用命名参数以提高可读性并避免混淆。
@Html.ActionLink(
linkText: "Click Here",
actionName: "Action",
controllerName: "Home",
routeValues: new { Identity = 2577 },
htmlAttributes: null)
使用MVC5我已经完成了这样,它是100%工作代码....
@Html.ActionLink(department.Name, "Index", "Employee", new {
departmentId = department.DepartmentID }, null)
你们可以从中得到一个想法......