Question

所以，我正在使用CookComputings XMLRPC库来与InfusionSoft交谈（这是一个非常受欢迎的在线CRM）。主要方法是：

 [XmlRpcMethod("DataService.query")]
 IEnumerable<object> QuerySubscriptionStatus(string apiKey, 
        string table, int limit, int page, 
        IDictionary queryData, string[] selectedFields);

我很遗憾地使用IEnumerable<object>，因为InfusionSoft XML / RPC API需要它。我希望情况不是这样，但可悲的是。

由于我使用.NET 4.5，我认为我可以做一个动态演员：

  var subStatus = proxy.QuerySubscriptionStatus(
      _key, "RecurringOrder", 500, 0, dict, sarray);
  var result = subStatus.Cast<SubscriptionStatus>();

不幸的是，这不起作用，我从C＃中得到了一个非常难过的错误：

无法将类型为'CookComputing.XmlRpc.XmlRpcStruct'的对象转换为'WBI.Model.SubscriptionStatus'。

我尝试将我的课程指定为struct;我甚至尝试用XMLRpcMember()标签来指定它，但不，它只是不会转换。

如何与IEnumerable？

中的数据进行互动

我尝试过的类/结构类型

public struct SubStatus
{
    public int AffiliateId;
    public int AutoCharge;
    public double BillingAmt;
    public string BillingCycle;
    public int CC1;
    public int CC2;
    public int ContactId;
    public DateTime EndDate;
    public int Frequency;
    public int Id;
    public DateTime LastBillDate;
    public int LeadAffiliateId;
    public int MaxRetry;
    public int MerchantAccountId;
    public DateTime NextBillDate;
    public int NumDaysBetweenRetry;
    public int OriginatingOrderId;
    public DateTime PaidThruDate;
    public int PaymentGatewayId;
    public int ProductId;
    public int ProgramId;
    public string PromoCode;
    public int Qty;
    public string ReasonStopped;
    public int ShippingOptionId;
    public DateTime StartDate;
    public string Status;
    public int SubscriptionPlanId;
}

我还尝试了一个包含XMLRpcMember标签的简单类：

public class SubscriptionStatus
{
    [XmlRpcMember("AffiliateId")]
    public int AffiliateId { get; set; }
    [XmlRpcMember("AutoCharge")]
    public int AutoCharge { get; set; }
    [XmlRpcMember("BillingAmt")]
    public double BillingAmt { get; set; }
    [XmlRpcMember("BillingCycle")]
    public string BillingCycle { get; set; }
    [XmlRpcMember("CC1")]
    public int CC1 { get; set; }
    [XmlRpcMember("CC2")]
    public int CC2 { get; set; }
    [XmlRpcMember("ContactId")]
    public int ContactId { get; set; }
    [XmlRpcMember("EndDate")]
    public DateTime EndDate { get; set; }
    [XmlRpcMember("Frequency")]
    public int Frequency { get; set; }
    [XmlRpcMember("Id")]
    public int Id { get; set; }
    [XmlRpcMember("LastBillDate")]
    public DateTime LastBillDate { get; set; }
    [XmlRpcMember("LeadAffiliateId")]
    public int LeadAffiliateId { get; set; }
    [XmlRpcMember("MaxRetry")]
    public int MaxRetry { get; set; }
    [XmlRpcMember("MerchantAccountId")]
    public int MerchantAccountId { get; set; }
    [XmlRpcMember("NextBillDate")]
    public DateTime NextBillDate { get; set; }
    [XmlRpcMember("NumDaysBetweenRetry")]
    public int NumDaysBetweenRetry { get; set; }
    [XmlRpcMember("OriginatingOrderId")]
    public int OriginatingOrderId { get; set; }
    [XmlRpcMember("PaidThruDate")]
    public DateTime PaidThruDate { get; set; }
    [XmlRpcMember("PaymentGatewayId")]
    public int PaymentGatewayId { get; set; }
    [XmlRpcMember("ProductId")]
    public int ProductId { get; set; }
    [XmlRpcMember("ProgramId")]
    public int ProgramId { get; set; }
    [XmlRpcMember("PromoCode")]
    public string PromoCode { get; set; }
    [XmlRpcMember("Qty")]
    public int Qty { get; set; }
    [XmlRpcMember("ReasonStopped")]
    public string ReasonStopped { get; set; }
    [XmlRpcMember("ShippingOptionId")]
    public int ShippingOptionId { get; set; }
    [XmlRpcMember("StartDate")]
    public DateTime StartDate { get; set; }
    [XmlRpcMember("Status")]
    public string Status { get; set; }
    [XmlRpcMember("SubscriptionPlanId")]
    public int SubscriptionPlanId { get; set; }
}

Answer 1

因此，经过另一位高级开发人员的一些扩展帮助后，我们发现我们能够对结构进行一些更改：

    private string[] retFlds = { "Id", "ContactId", "OriginatingOrderId", "ProgramId", "SubscriptionPlanId", "ProductId", "StartDate", "NextBillDate", "BillingCycle", "Frequency", "BillingAmt", "Status", "ReasonStopped", "AutoCharge", "CC1", "CC2", "NumDaysBetweenRetry", "MaxRetry", "MerchantAccountId", "AffiliateId", "PromoCode", "LeadAffiliateId", "Qty", "ShippingOptionId" };
    private string table = "RecurringOrder";
    private DataTable dt = new DataTable();
    // here's the query 
    XmlRpcStruct[] retData = proxy.Query(Auth.key, table, 1000, 0, qryData, returnFields);
    dt = StructArrayToDT(retData);

    public static DataTable StructArrayToDT(XmlRpcStruct[] data)
    {
        DataTable dt = new DataTable();
        if (data.Length == 0) { return dt; }

        // do columns
        foreach (DictionaryEntry d in data[0])
        {
            dt.Columns.Add(d.Key.ToString(), typeof(object));
        }

        foreach (XmlRpcStruct xmlstruct in data)
        {
            DataRow dr = dt.NewRow();
            foreach (DictionaryEntry d in xmlstruct)
            {
                try
                {
                    dr[d.Key.ToString()] = d.Value;
                }
                catch (Exception ex)
                { 
                    // handle errors
                }

            }
            dt.Rows.Add(dr);
        }
        return dt;
    }

最后可以毫无问题地访问该数据。

Answer 2

查看QuerySubscriptionStatus的签名，返回IEnumerable。再次，如果你看一下实现IDictionary，ICollection，IEnumerable的XmlRpcStruct（Fork of XML.Rpc.Net）的定义。因此，如果我们假设QuerySubscriptionStatus正在返回实现IEnumerable的XmlRpcStruct，那么您将获得响应中的Enumeration，它实际上是项目集合（即使它包含单个项目）。您正在尝试将Enumeration类型转换为非集合的结构（SubscriptionStatus）。因此错误。如果Enumeration中包含的项是SubscriptionStatus结构类型，那么下面的行应该是技巧。

var resultList = subStatus.ToList<SubscriptionStatus();

然后遍历resultList以访问QuerySubscriptionStatus方法的响应。

foreach(var result in resultList)
{

}

或者，如果您确定响应列表只有一个条目，那么您也可以使用以下

var result = resultList.FirstOrDefault();

希望有所帮助。

将CookComputing XMLRpcStruct（IEnumerable <object>）转换为实际的C＃类

2 个答案: