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。如何正确执行此操作？

这是我获取列表数据的控制器内部的代码：

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;
        }

此方法返回一个数据合同列表（在这种情况下只有一个）。

我在同一控制器内以及Index方法内都做了一个测试方法：

public ActionResult Index()
        {
            var shipmentDataTest = Get(94);

            ViewBag.shipmentTestData = shipmentDataTest;

            return View();
        }

当我调试后端时，它将返回正确的货件（ID为94）。

现在，我想在视图中显示货运信息。

在我看来，我做了水痘

<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
    }
});

比起调用数据，它不会显示值，而是一个通用字符串。

<p>{{ shipmentTestData }}</p>

它返回以下内容：

System.Collections.Generic.List`1[ShipmentDataContract]

有人知道如何解决此问题吗？由于某种原因，我分配的变量具有格式字符串，这会导致我认为这个问题，但是我该如何解决呢？

Answer 1

这是正确的方法。

型号：

   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);
    }

查看：

    @Model YourShipmentModel
    //here you can call Model.variable

Answer 2

如果要将列表用作字符串，则可以将结果发送为

 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，您要发送待发送列表“ shipmentDataTest”作为逗号分隔的列表。让我知道这是否是您想要的。问候。

如何从控制器传递对象列表以进行查看？

2 个答案: