活动菜单项 - asp.net MVC3母版页 [英] active menu item - asp.net mvc3 master page

问题描述

我一直在四处扫描试图找到从母版页分配主动/当前类的菜单项相应的解决方案。该生产线是中间拆了下来与是否做这个客户端VS服务器端的问候。

I've been scanning around trying to find an appropriate solution for assigning "active/current" class to menu items from the master page. The line is split down the middle with regards of whether to do this client vs server side.

说实话我是新来的JavaScript和MVC所以我没有意见。我想preFER要做到这一点，在干净，最恰当的方式。

Truthfully I'm new to both JavaScript and MVC so i don't have an opinion. I would prefer to do this in the "cleanest" and most appropriate way.

我有以下的jQuery code分配活动类的＆lt;立GT;项目......唯一的问题是指数或默认视图菜单项将始终分配活动类，因为URL始终是其它菜单链接的子串：

I have the following jQuery code to assign the "active" class to the <li> item...the only problem is the "index" or default view menu item will always be assigned the active class, because the URL is always a substring of the other menu links:

(default) index = localhost/
link 1 = localhost/home/link1
link 2 = localhost/home/link1

$(function () {
 var str = location.href.toLowerCase();
  $('#nav ul li a').each(function() {
   if (str.indexOf(this.href.toLowerCase()) > -1) {
    $(this).parent().attr("class","active"); //hightlight parent tab
   }
});

是否有这样做，伙计们一个更好的办法？有人会至少帮我把客户端版本防弹？使指数或默认链接始终是激活？是否有分配一个假扩展到索引方法的一种方式？像而不只是基本URL这将是本地主机的/ home /仪表板，这样它不会是每个环节的一个子？

Is there a better way of doing this, guys? Would someone at least help me get the client-side version bulletproof? So that the "index" or default link is always "active"? Is there a way of assigning a fake extension to the index method? like instead of just the base URL it would be localhost/home/dashboard so that it wouldn't be a substring of every link?

说实话，我真的不遵循这样的服务器端，这就是为什么我试图用jQuery做客户端的方法...任何帮助，将AP preciated。

Truthfully, i don't really follow the methods of doing this server-side, which is why I'm trying to do it client side with jQuery...any help would be appreciated.

推荐答案

自定义HTML帮助通常做工作罚款：

A custom HTML helper usually does the job fine:

public static MvcHtmlString MenuLink(
    this HtmlHelper htmlHelper, 
    string linkText, 
    string actionName, 
    string controllerName
)
{
    string currentAction = htmlHelper.ViewContext.RouteData.GetRequiredString("action");
    string currentController = htmlHelper.ViewContext.RouteData.GetRequiredString("controller");
    if (actionName == currentAction && controllerName == currentController)
    {
        return htmlHelper.ActionLink(
            linkText,
            actionName,
            controllerName,
            null,
            new {
                @class = "current"
            });
    }
    return htmlHelper.ActionLink(linkText, actionName, controllerName);
}

和在你的母版页：

<ul>
    <li>@Html.MenuLink("Link 1", "link1", "Home")</li>
    <li>@Html.MenuLink("Link 2", "link2", "Home")</li>
</ul> 

现在所有剩下的就是定义.current CSS类。

Now all that's left is define the .current CSS class.

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