如何将对象列表从控制器传递给视图？

Question

我的控制器中有一些数据（数据合同列表）。我想在我的视图中显示该列表的字段/值。我该如何正确地做到这一点？这是我的控制器中获取列表数据的代码：public List<ShipmentDataContract> Get(long shipmentServiceId)        {            Logging.Instance.Info($"Shipment request came in for shipment with ShipmentServiceId = {shipmentServiceId}");            ShipmentQueryResult shipmentQueryResult = GetShipmentByShipmentServiceIdResult(shipmentServiceId);            Logging.Instance.Debug($"Shipment queried with ShipmentServiceId = {shipmentServiceId}");            List<ShipmentDataContract> shipmentDataContracts = GetShipmentsFromResult(shipmentQueryResult);            Logging.Instance.Info($"Shipment retrieved for shipment with ShipmentServiceId = {shipmentServiceId}.");            return shipmentDataContracts;        }此方法返回数据合同列表（在本例中只有一个）。我在同一个控制器内以及 Index 方法内创建了一个测试方法：public ActionResult Index()        {            var shipmentDataTest = Get(94);            ViewBag.shipmentTestData = shipmentDataTest;            return View();        }当我调试后端时，它返回正确的装运（ID 为 94）。现在我想在我的视图中显示装运信息。在我看来，我做了一个变量：<script>    var shipmentTestData = '@ViewBag.shipmentTestData';</script>在我的 Vue 应用程序文件中分配了正确的值：var Vue = new Vue({    el: "#vueapp",    components: ["error"],    data: {        shipmentTestData: shipmentTestData    }});比起我调用数据时，它不会显示值，而是显示通用字符串。<p>{{ shipmentTestData }}</p>它返回这个：System.Collections.Generic.List`1[ShipmentDataContract]有人知道如何解决这个问题吗？出于某种原因，我分配的变量是格式字符串，这导致了我假设的这个问题，但我该如何解决这个问题？

Answer 1

这是正确的方法。

模型：

   public class ShipmentData

   {

       Task<List<ShipmentDataContract>> Get(long shipmentServiceId)

       {

          return YourList;

       }

控制器：

  public ActionResult Index()

    {

        var shipmentDataTest = ShipmentData.Get(//index);

        return View(shipmentDataTest);

    }

看法：

    @Model YourShipmentModel

    //here you can call Model.variable

Answer 2

如果您想将列表用作字符串，您可以发送结果

 IList<string> someStrings = Get(94); // i assume than get method returns a list of "strings"

 string joined = string.Join(",", someStrings );

 ViewBag.shipmentTestData = joined;

现在您要将列表“shipmentDataTest”作为逗号分隔列表发送给前端。让我知道这是否是您要找的东西。问候。