C# 将JSON数据插入dynamics中的字段（例如联系人的名字）

我将以下JSON数据存储在外部数据库中：

{
 "id": "emulator:conversation4acee870-4bf7-11e9-849f-abbeb92fb354|livechat",
 "botId": "05682e70-4410-11e9-bd6d-d3b4ec617e06",
 "channelId": "emulator",
 "conversationId": "4acee870-4bf7-11e9-849f-abbeb92fb354|livechat",
 "userId": "72aee04c-8ce5-4c1e-abfe-32680a5f2404",
 "data": {
     "FirstName": "sam",
     "Surname": "smith"
 },
 "etag":"2355667676",
 "attachement":"222445666"
}

我想做的是获取firstname的值并将其放入dynamics新联系人实体中

目前，我已经创建了一个控制台应用程序，并已连接到我的外部数据库和dynamics 365。从控制台应用程序到dynamics的连接正常。 我能够查询数据库并检索请求值。但是，我不知道如何在dynamics中插入JSON数据

class Program
{

  public static IOrganizationService axoService;
  public static IOrganizationService service;
  private Guid _accountId;
  public Guid _contactId;
  //connect to cosmos db
  private const string EndpointUrl = "https://botstore.documents.azure.com:###/";
  private const string PrimaryKey = "Z###########################=";
  private DocumentClient client;

  static void Main(string[] args)
   {
      Task.Run(async () =>
      {
          var endpoint = EndpointUrl;
          var masterKey = PrimaryKey;
          using (var client = new DocumentClient(new Uri(endpoint), masterKey))
          {

              Console.WriteLine(">>>> Querying Document <<<<<<");

              //returns all
              var response = client.CreateDocumentQuery(UriFactory.CreateDocumentCollectionUri("botdb","botcollection"),"select * from c").ToList();

              //returns first one
              var g = response.First();
              Console.WriteLine($"id:{g.id}");

              //return botid contains convo
              var p = response.Where(op => op.id.Contains("conv")).ToList().First();


              Console.WriteLine($"id2:{p.id}");
              Console.WriteLine($"id2:{p.botId}");
              Console.WriteLine($"id2:{p.data.FirstName}");
              Console.WriteLine("Query done");

              //After query delete conversation? maybe after it is added to dynamics, then delete in another function

              var connectionString = @"AuthType = Office365; Url = https://#####.crm11.dynamics.com/;Username=s######@dynamics.co.uk;Password=########";
              CrmServiceClient conn = new CrmServiceClient(connectionString);

              axoService = conn.OrganizationServiceProxy;

              IOrganizationService _orgService;
              orgService = (IOrganizationService)conn.OrganizationWebProxyClient != null ? (IOrganizationService)conn.OrganizationWebProxyClient : (IOrganizationService)conn.OrganizationServiceProxy;

              RetrieveVersionRequest versionRequest = new RetrieveVersionRequest();
              RetrieveVersionResponse versionResponse =(RetrieveVersionResponse)_orgService.Execute(versionRequest);

              Console.WriteLine("Microsoft Dynamics CRM version {0}.",versionResponse.Version);

              var pop = p.data.FirstName;//gets the value from json 
              data//sam

              Entity cont = new Entity("contact");        

              cont["firstname"] = pop;//error:Type **'Newtonsoft.Json.Linq.JToken' is a recursive collection data contract which is not supported. Consider modifying the definition of collection 'Newtonsoft.Json.Linq.JToken' to remove references to itself.**- this is not WCF though so don't have service references

              cont["lastname"] = "Simmmmmmspsson";

              axoService.Create(cont);

              Console.WriteLine("new contact added");
              Console.ReadLine();

---

如何在Microsoft Dynamics中联系人实体的FirstName字段中插入JSON数据？

您编写的代码是

cont["firstname"] = pop;

因此，在上面的一行中，pop可能包含数据，但其类型是Newtonsoft.Json.Linq.JToken，而不是纯字符串

但是你的合同实体需要纯字符串

这就是为什么它会抛出这样的错误

类型**'Newtonsoft.Json.Linq.JToken'是不受支持的递归收集数据协定。考虑修改集合“NeNethSoop.JSO.LINQ，JToken”的定义，以删除对自身的引用。

因此，如果您将类型从JToken更改为string，那么您的异常可能会消失

var pop = p.data.FirstName.ToString();

或

---

您是否尝试使用DataContractJsonSerializer来序列化和反序列化JSON？或者根据需要使用来序列化和反序列化JSON。请参见以下示例：。我正在使用Newtonsoft JSON包。NET@Sam，试试这个=>var pop=p.data.FirstName.ToString；让我知道：@Sam，这里的假设是JSON字符串将来自您的数据库，但将具有我创建的模型类型。基本上JSON的结构应该是相同的。

var pop = Convert.ToString(p.data.FirstName);