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我想补充的OData查询选项在现有的ASP.NET Web API服务2跟随此link。我只希望查询选项在GET方法中可用。当我试图通过ID获取项目时,我无法使用$ select选项。我怎样才能做到这一点?这是我到目前为止有:
public class OrdersController : ApiController
{
private readonly IOrderService orderService;
public OrdersController(IOrderService orderService)
{
this.orderService = orderService;
}
[HttpGet]
[Route("api/orders/{id}", Name = "GetOrderById")]
[ResponseType(typeof(Order))]
public IHttpActionResult GetOrder(ODataQueryOptions<Order> opts, [FromUri] int id)
{
Order order = orderService.GetOrderById(id);
if (order == null)
{
return NotFound();
}
if (opts.SelectExpand != null)
Request.ODataProperties().SelectExpandClause = opts.SelectExpand.SelectExpandClause;
return Ok(order);
}
}
当我测试它(?http://localhost:10240/api/orders/1 $选择=的OrderId)我有以下结果:
{
"OrderId": 1,
"ExternalId": "S001",
"TransactionType": "I",
"BusinessAssociateId": 1,
"DeliveryDate": "2017-06-30T21:08:50.427",
"Priority": 5,
"OrderType": "A",
"Status": "F",
"Information": "Incoming Material",
"Device": "1",
"BusinessAssociateName": null,
"BusinessAssociateStreet": null,
"BusinessAssociateCity": null,
"OrderDetails": null
}
尝试改变[HTTPGET]至[EnableQuery]。您也可以尝试自己应用这些选项,opts.SelectExpand.ApplyTo(order); – mumfy