Asp.Net MVC:如何获取当前控制器/视图的虚拟URL?

是否可以获取与控制器操作或视图关联的路由/虚拟URL? 我看到Preview 4添加了LinkBuilder.BuildUrlFromExpression助手,但是如果你想在master上使用它,它不是很有用,因为控制器类型可能不同。 任何想法都表示赞赏。

我总是尝试实施满足项目要求的最简单的解决方案。 正如恩斯坦所说,“让事情变得尽可能简单,但并不简单。” 试试这个。

<%: Request.Path %> 

这对我有用:

<%= this.Url.RouteUrl(this.ViewContext.RouteData.Values) %>

它会返回当前的Url; /Home/About

也许有一种更简单的方法来返回实际的路由字符串?

您可以从ViewContext.RouteData获取该数据。 以下是如何访问(和使用)该信息的一些示例:

///这些被添加到我的viewmasterpage,viewpage和viewusercontrol基类:

 public bool IsController(string controller) { if (ViewContext.RouteData.Values["controller"] != null) { return ViewContext.RouteData.Values["controller"].ToString().Equals(controller, StringComparison.OrdinalIgnoreCase); } return false; } public bool IsAction(string action) { if (ViewContext.RouteData.Values["action"] != null) { return ViewContext.RouteData.Values["action"].ToString().Equals(action, StringComparison.OrdinalIgnoreCase); } return false; } public bool IsAction(string action, string controller) { return IsController(controller) && IsAction(action); } 

///我添加到UrlHelper类的一些扩展方法。

 public static class UrlHelperExtensions { ///  /// Determines if the current view equals the specified action ///  /// The type of the controller. /// Url Helper /// The action to check. ///  /// true if the specified action is the current view; otherwise, false. ///  public static bool IsAction(this UrlHelper helper, LambdaExpression action) where TController : Controller { MethodCallExpression call = action.Body as MethodCallExpression; if (call == null) { throw new ArgumentException("Expression must be a method call", "action"); } return (call.Method.Name.Equals(helper.ViewContext.ViewName, StringComparison.OrdinalIgnoreCase) && typeof(TController) == helper.ViewContext.Controller.GetType()); } ///  /// Determines if the current view equals the specified action ///  /// Url Helper /// Name of the action. ///  /// true if the specified action is the current view; otherwise, false. ///  public static bool IsAction(this UrlHelper helper, string actionName) { if (String.IsNullOrEmpty(actionName)) { throw new ArgumentException("Please specify the name of the action", "actionName"); } string controllerName = helper.ViewContext.RouteData.GetRequiredString("controller"); return IsAction(helper, actionName, controllerName); } ///  /// Determines if the current view equals the specified action ///  /// Url Helper /// Name of the action. /// Name of the controller. ///  /// true if the specified action is the current view; otherwise, false. ///  public static bool IsAction(this UrlHelper helper, string actionName, string controllerName) { if (String.IsNullOrEmpty(actionName)) { throw new ArgumentException("Please specify the name of the action", "actionName"); } if (String.IsNullOrEmpty(controllerName)) { throw new ArgumentException("Please specify the name of the controller", "controllerName"); } if (!controllerName.EndsWith("Controller", StringComparison.OrdinalIgnoreCase)) { controllerName = controllerName + "Controller"; } bool isOnView = helper.ViewContext.ViewName.SafeEquals(actionName, StringComparison.OrdinalIgnoreCase); return isOnView && helper.ViewContext.Controller.GetType().Name.Equals(controllerName, StringComparison.OrdinalIgnoreCase); } ///  /// Determines if the current request is on the specified controller ///  /// The helper. /// Name of the controller. ///  /// true if the current view is on the specified controller; otherwise, false. ///  public static bool IsController(this UrlHelper helper, string controllerName) { if (String.IsNullOrEmpty(controllerName)) { throw new ArgumentException("Please specify the name of the controller", "controllerName"); } if (!controllerName.EndsWith("Controller", StringComparison.OrdinalIgnoreCase)) { controllerName = controllerName + "Controller"; } return helper.ViewContext.Controller.GetType().Name.Equals(controllerName, StringComparison.OrdinalIgnoreCase); } ///  /// Determines if the current request is on the specified controller ///  /// The type of the controller. /// The helper. ///  /// true if the current view is on the specified controller; otherwise, false. ///  public static bool IsController(this UrlHelper helper) where TController : Controller { return (typeof(TController) == helper.ViewContext.Controller.GetType()); } } 

您可以使用<%= Url.Action(action,controller,values)%>从母版页中构建URL。

你这样做是为了突出显示当前页面的标签或什么?

如果是这样,您可以从视图中使用ViewContext并获取所需的值。

我写了一个帮助类 ,允许我访问路由参数。 使用此帮助程序,您可以获取控制器,操作以及传递给操作的所有参数。