c# - Web 服务中的数组 - 对象引用未设置为对象的实例

Question

我正在发送包含数组的 soap 消息。我的代码中存在数组问题。它给出了上述错误，我到处都看过，甚至一遍又一遍地编写和重写我的代码，但我似乎找不到哪里出错了。

如果有人能指出正确的方向，我将不胜感激:

UpdateRatePackages.IService.InventoryServiceClient isc = new UpdateRatePackages.IService.InventoryServiceClient();
    UpdateRatePackages.IService.UpdateRatePackagesRequest ureq = new UpdateRatePackages.IService.UpdateRatePackagesRequest();
    UpdateRatePackages.IService.UpdateRatePackagesOperationResponse ores = new UpdateRatePackages.IService.UpdateRatePackagesOperationResponse();

protected void Page_Load(object sender, EventArgs e) { SendSoapMessage();

protected void SendSoapMessage() {

        Int64 HID = 717759;
        Int64 HRID = 85264;
        int avail = 6;
       // RateDetails.AvailabilityApplicationType val  = RateDetails.AvailabilityApplicationType.SET;
       for (int i = 0; i < ureq.RatePackages.GetLength(0); i++)
        {
            ureq.RatePackages[i].RatePackageId = HRID;
            for (int j = 0; j < ureq.RatePackages[j].Rates.GetLength(0); j++)
            {
                ureq.RatePackages[i].Rates[j].Availability = avail;
                ureq.RatePackages[i].Rates[j].AvailabilityApplicationType = UpdateRatePackages.IService.AvailabilityApplicationType.SET;
                ureq.RatePackages[i].Rates[j].FromDate = Convert.ToDateTime("2012-03-21");
                ureq.RatePackages[i].Rates[j].ToDate = Convert.ToDateTime("2012-03-31");
            }

           // isc.UpdateRatePackages(request);

        }

在网络服务中定义的数据:

     public class UpdateRatePackagesRequest
    {
        public string Username;
        public string Password;
        public UpdateRatePackageRequest[] RatePackages;


    }

    public class UpdateRatePackageRequest
    {
        public Int64 RatePackageId;
        public RateDetails[] Rates;

    }


    public class RateDetails
    {
        public decimal Rate;
        public enum RateApplicationType { SET, INCREASE, DECREASE, INCREASE_PERCENT, DECREASE_PERCENT } ;
        public int Availability;
        public enum AvailabilityApplicationType { SET , INCREASE, DECREASE };
        public bool StopSell;
        public string Inclusions;
        public int MinimumNightStay;
        public DateTime FromDate;
        public DateTime ToDate;

    }



    public class UpdateRatePackageResult
    {
        public Int64 RatePackageId;
        public Boolean Success;
        public string Message;

    }

    public class UpdateRatePackagesResponse

    {
        public UpdateRatePackageResult[] Result;

    }

我的问题出在数组中还是与 soap 消息本身有关？

突出显示错误的行:

for (int i = 0; i < ureq.RatePackages.GetLength(0); i++)

请帮忙!

Answer 1

for (int i = 0; i < ureq.RatePackages.GetLength(0); i++)

如果错误发生在那里，则 ureq 或 RatePackages 为 null。在调试器中单步执行并查看哪个是 null。看起来您正在设置 ureq，但无论如何您都应该检查。