无法将字符串算出 BsonType ObjectId 在 MongoDb C#

我得到一个错误

"Cannot deserialize string from BsonType ObjectId"

, 试图从中获取整个记录 MongoDb 在 C# WebAPI

我的身份证

[BsonId]

public string Id { get; set; }

改变它后

[BsonRepresentation/BsonType.ObjectId/] 

public string Id { get; set; }

它效果很好

但是，虽然我称之为方法 post, 他给了我另一个错误

"'d05e139c-3a48-4213-bd89-eba0c22c3c6f' is not a valid 24 digit hex string."

如何解决这个问题

我的型号：

public class EstablishmentDetails

{



 [BsonRepresentation/BsonType.ObjectId/] 

 public string Id { get; set; }

 public string EstablishmentName { get; set; }

 public string EstablishmentType { get; set; }

 public string Address { get; set; }

 public string City { get; set; }

 public int StateID { get; set; }

 public Int32 PIN { get; set; }

 public Int64 PhoneNumber { get; set; }

 public string EmailID { get; set; }

 public bool Published { get; set; }

 public string CreatedDate { get; set; }

 public string ModifiedDate { get; set; }

}

我的储存库 Get

public IEnumerable<establishmentdetails> GetAllEstablishmentDetails//

 {

 if /Convert.ToInt32/mCollection.Count/// &gt; 0/

 {

 var EstablishmentDetailsCollection = mCollection.FindAllAs/typeof/EstablishmentDetails//;



 if /EstablishmentDetailsCollection.Count// &gt; 0/

 {

 foreach /EstablishmentDetails item in EstablishmentDetailsCollection/

 {

 establishmentDetails.Add/item/;

 }

 }

 }

 var results = establishmentDetails.AsQueryable//;

 return results;

 }

我的储存库 Post

public EstablishmentDetails Add/EstablishmentDetails ed/

 {

 if /string.IsNullOrEmpty/ed.Id//

 {

 ed.Id = Guid.NewGuid//.ToString//;

 }



 mCollection.Save/ed/;

 return ed;

 }

</establishmentdetails>