我已经看到这样做了几种不同的方式,但不是具体的我想要的。我目前有一个自定义的HtmlHelper,它将“class ='currentPage'”添加到ActionLink以突出显示导航系统中的当前页面。
public static MvcHtmlString MenuItem(
this HtmlHelper htmlHelper,
string text,
string action,
string controller
)
{
string value;
var routeData = htmlHelper.ViewContext.RouteData;
var currentAction = routeData.GetRequiredString("action");
var currentController = routeData.GetRequiredString("controller");
if (string.Equals(currentAction, action, StringComparison.OrdinalIgnoreCase) &&
string.Equals(currentController, controller, StringComparison.OrdinalIgnoreCase))
{
value = htmlHelper.ActionLink(text, action, new { controller = controller }, new { @class = "currentPage" }).ToHtmlString();
return MvcHtmlString.Create(value.ToString());
}
value = htmlHelper.ActionLink(text, action, controller).ToHtmlString();
return MvcHtmlString.Create(value.ToString());
}
这非常有效,但我有一个管理区域,我还有一个与每个菜单项相关联的图像。图像位于链接中,如下所示:
<li><a href="/Admin/Blog"><img src="/Content/images/icons/page_edit.png" alt="" /> Blog</a></li>
我想为“MenuItem”创建一个覆盖方法,在ActionLink中添加图像,但我有点难过。目前我有以下内容,将img标签放在外面......
public static MvcHtmlString MenuItem(
this HtmlHelper htmlHelper,
bool isAdmin,
string text,
string action,
string controller
)
{
string value;
var routeData = htmlHelper.ViewContext.RouteData;
var currentAction = routeData.GetRequiredString("action");
var currentController = routeData.GetRequiredString("controller");
value = "<img src='/Content/images/admin_icons/" + text + ".png' alt='' /> ";
if (string.Equals(currentAction, action, StringComparison.OrdinalIgnoreCase) &&
string.Equals(currentController, controller, StringComparison.OrdinalIgnoreCase))
{
value += htmlHelper.ActionLink(text, action, new { controller = controller }, new { @class = "currentPage" }).ToHtmlString();
}
else
{
value += htmlHelper.ActionLink(text, action, controller).ToHtmlString();
}
return MvcHtmlString.Create(value.ToString());
}
有什么想法吗?
答案 0 :(得分:0)
我会使用UrlHelper生成URL,然后格式化字符串。我的例子没有涉及添加条件类,但这应该很容易包含。
var urlHelper = new UrlHelper(htmlHelper.ViewContext.RequestContext);
var url = urlHelper.Action(action, controller);
var imgUrl = urlHelper.Content("~/Content/images/icons/page_edit.png");
var html = string.Format("<li><a href=\"{0}\"><img src=\"{2}\" alt=\"\" />{1}</a></li>", url, text, imgUrl);
return new MvcHtmlString(html);