创建在参数中具有两个对象的服务以在xamarin REST API中使用它

如何解决创建在参数中具有两个对象的服务以在xamarin REST API中使用它

我必须在c＃中创建一个在parameter中有两个对象的服务，但是当我在Postman中运行它时；有一个错误： “ Message”：“发生错误。”， “ ExceptionMessage”：“无法将多个参数（'from'和'to'）绑定到请求的内容。”， “ ExceptionType”：“ System.InvalidOperationException”， “ StackTrace”：“àSystem.Web.Http.ApiController.d__1.MoveNext（）---保留所有权利的例外-àSystem.Web.Http.ApiController.d__1.MoveNext（） .Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）àSystem.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）àSystem.Web.Http.Dispatcher.HttpControllerDispatcher.d__0.MoveNext（）“

我的服务：

    [Description("Get Distance")]
    [AllowAnonymous]
    [AcceptVerbs("GET","POST")]
    public System.Web.Mvc.JsonResult GetDistance([FromBody] AutoCompleteModelCustom from,AutoCompleteModelCustom to)
    {
        var LocalizationBo = EngineContext.Current.Resolve<ILocalizationBo>();
        var success = true;
        var errorMessage = String.Empty;
        var successNotificationMessage = String.Empty;
        double? distance = null;
        try
        {
            FillAutocompleteAddressDescription(from);
            FillAutocompleteAddressDescription(to);

            if (string.IsNullOrWhiteSpace(from.Description) || string.IsNullOrWhiteSpace(to.Description))
            {
                throw new Exception(LocalizationBo.GetResource("Error.Distance.EmptyAddress"));
            }

            var distanceResult = mapotempoServices.GetDistance(new MapotempoPoint { Address = from.Description },new MapotempoPoint { Address = to.Description });

            success = distanceResult.IsSuccess;
            distance = distanceResult.Response;
            errorMessage = distanceResult.ErrorMessage;
        }
        catch (Exception ex)
        {
            success = false;
            errorMessage = ex.Message;
        }
        return new System.Web.Mvc.JsonResult
        {
            Data = new
            {
                Distance = distance,Success = success,ErrorMessage = errorMessage,SuccessNotificationMessage = successNotificationMessage

            }
        };
    }

AutoCompleteModelCustom：

 public class AutoCompleteModelCustom
{
    public int? Id { get; set; }
    public string Title { get; set; }
    public string Description { get; set; }
}

我不知道如何使用它并以正确的方式运行它。