字典作为参数传递时会失去价值吗？

Question

我正在使用 MVC，我在重定向到某个操作之前填充了一些值，在此期间我的字典的计数始终为 0？

我在它通过之前检查计数，它是否超过 0，但当它通过另一侧时始终为 0。

我也传递了其他字符串值，但它们都很好。

我的重定向到行动。

return RedirectToAction(
    "APNewQuote", 
    new { 
        OENumber = "", QuoteNumber = "", ClaimNumber = ClaimNumber,
        MotorBodyRepairer = "", VehicleRegistration = vRegistration,
        vehicleMakeId = "", vehicleModelId = "", vehicleRangeId = "",
        vehicleMakeModels = "", vehicleModelCode = "",
        year = vYear, OEParts = OEParts }
);

接收值的我的操作结果。

public ActionResult APNewQuote(string OENumber, string QuoteNumber, string ClaimNumber,
    string MotorBodyRepairer, string VehicleRegistration, int? vehicleMakeId,
    int? vehicleModelId, int? vehicleRangeId, string vehicleMakeModels,
    string vehicleModelCode, int? year, Dictionary<string,string> OEParts )

谁能告诉我如何防止这种情况发生。

Answer 1

我认为字典没有被序列化。如解释in this question's answerIf you need to pass in some-what complex objects to an action after a redirect, you probably want to use either a Session or TempData:

因此，将您的字典保存到 TempData 或 Session 对象中。

用法：

// save
TempData["myDictionary"] = OEParts;


// retrieve
var myDic = TempData["myDictionary"] as Dictionary<string,string>;

HttpContext.Session Property

ControllerBase.TempData Property

Answer 2

试试这个

    var oem = new Dictionary<string, string>();
        DataTable dt = DataAccessLayer.GetPartsDamaged()
        foreach(DataRow row in dt.Rows)
        {
            oem.Add(row["key"].ToString(),row["value"].ToString());
        }

    return RedirectToAction("APNewQuote", new { OENumber = "", QuoteNumber = "", ClaimNumber = ClaimNumber, MotorBodyRepairer = "", VehicleRegistration = vRegistration, vehicleMakeId = "", vehicleModelId = "", vehicleRangeId = "", vehicleMakeModels = "", vehicleModelCode = "", year = vYear, OEParts = oem});