Question

我在.cshtml中有这两行：

<li><a href="@Url.Action("GetAllVehicleLocations", "VehicleReporting", new { @class = "page-scroll" })">All Vehicle Locations</a></li>

<li><a href="@Url.Action("GetToBeDoneVehicles", "VehicleReporting", new { @class = "page-scroll" })">To Be Done Vehicles</a></li>

我想隐藏这些超链接，具体取决于Controller返回的值。该值是ClientID。如果ClientID = 1，则隐藏链接，否则将其保持可见。

我尝试了各种不同的实现，下面是我的最后一次。

.cshtml：

if (@Html.Action("GetSelectedClientID", "VehicleReporting") != 1)
{
   <li><a href="@Url.Action("GetAllVehicleLocations", "VehicleReporting", new {@class = "page-scroll"})">All Vehicle Locations</a></li>
   <li><a href="@Url.Action("GetToBeDoneVehicles", "VehicleReporting", new {@class = "page-scroll"})">To Be Done Vehicles</a></li>
}

控制器：

[Authorize]
[HttpGet]
public ActionResult GetSelectedClientID()
{
   selectedClientId = HelperMethods.GetClientId();
   return PartialView(selectedClientId);
}

感谢任何帮助。请注意，我是MVC的新手！

Answer 1

在这种情况下你的控制器应该返回纯文本，或者你可以返回json并使用ajax调用，但以下内容应该让你继续：

[Authorize]
[HttpGet]
public ActionResult GetSelectedClientID()
{
   var selectedClientId = HelperMethods.GetClientId().ToString();
   return Content(selectedClientId);
}

现在可以查看返回的字符串值：

@if(Html.Action("GetSelectedClientID", "VehicleReporting").ToString() != "1")
{
   <li><a href="@Url.Action("GetAllVehicleLocations", "VehicleReporting", new {@class = "page-scroll"})">All Vehicle Locations</a></li>
   <li><a href="@Url.Action("GetToBeDoneVehicles", "VehicleReporting", new {@class = "page-scroll"})">To Be Done Vehicles</a></li>
}

Answer 2

如果我理解正确，您希望根据值有条件地隐藏部分视图。

您可以在主要操作中使用ViewData字典：

[Authorize]
[HttpGet]
public ActionResult MyAction()
{
   ViewData["selectedClientId"] = HelperMethods.GetClientId();
   return View();
}

在您的视图中以这种方式检查其价值：

@if (ViewData["selectedClientId"] != 1)
{
   <li><a href="@Url.Action("GetAllVehicleLocations", "VehicleReporting", new {@class = "page-scroll"})">All Vehicle Locations</a></li>
   <li><a href="@Url.Action("GetToBeDoneVehicles", "VehicleReporting", new {@class = "page-scroll"})">To Be Done Vehicles</a></li>
}

如何根据Controller返回的值隐藏部分视图中的超链接

2 个答案: