c# – Method上的Webapi参数为null

我试图将 JSON格式的数据对象(WorkOrders)列表发回给我的Webapi控制器,这非常好用,除了数据对象参数(savemodel)在点击webapi时为空的轻微缺陷控制器.
这是来自JS的剪辑(插槽是模拟数据)

var slots = [];    
            slots.push({ 'WorkOrder': 'XX21','OrderDate': '2015-10-11 00:00:00','Slot': '1','SageRef': 'HS11' });
            slots.push({ 'WorkOrder': 'XX22','OrderDate': '2015-10-12 00:00:00','Slot': '2','SageRef': 'HS12' })
            slots.push({ 'WorkOrder': 'XX23','OrderDate': '2015-10-13 00:00:00','Slot': '3','SageRef': 'HS13' });
            console.log(JSON.stringify({ 'savemodel': slots }))
            $.ajax({
                type: "POST",url: 'http://localhost:55821/api/schedule',data: JSON.stringify({ 'savemodel': slots }),contentType: 'application/json; charset=utf-8'                
            }).success(function (data) {
                $scope.$apply(function () {
                    if (data.SaveMessage.length > 0) {
                      // do something
                    }
                    else {
                      // do something else
                    }
                });
            });

该模型：

public class WorkOrderModel
{
    public string WorkOrder { get; set; }
    public string OrderDate { get; set; }
    public string SlotNumber { get; set; }
    public string SageRef { get; set; }
}

回发方法：

[HttpPost]
        public IHttpActionResult UpdateWorkOrder([FromBody]List<WorkOrderModel> savemodel)
        {
            StringBuilder saveMessage = new StringBuilder();
            foreach (WorkOrderModel model in savemodel)
            {
                   // save the WO model object  here                
            }
            if (saveMessage.Length > 0)
            {
                return Ok(new { SaveMessage = "There were issues: " + saveMessage.ToString() });
            }
            else
            {
                return Ok(new { SaveMessage = "" });
            }
        }

Posted JSON
Null parameter in the WebApi Controller
这让我疯了,所以在这个阶段,任何帮助都将受到极大的赞赏！

问候,
itsdanny

解决方法

排序,它改变了

data：JSON.stringify({‘savemodel’：slots}),

至

data：JSON.stringify(slots),