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[英]MongoDB C# 2 Driver — Cannot deserialize 'String' from BsonType 'Double'
[英]Cannot deserialize string from BsonType ObjectId in MongoDb C#
我在嘗試從C#WebAPI中獲取MongoDb的所有記錄時收到錯誤"Cannot deserialize string from BsonType ObjectId"
我的身份證明
[BsonId]
public string Id { get; set; }
將其更改為
[BsonRepresentation(BsonType.ObjectId)]
public string Id { get; set; }
它的工作正常
但是,雖然我正在調用post方法,但它給了我不同的錯誤
"'d05e139c-3a48-4213-bd89-eba0c22c3c6f' is not a valid 24 digit hex string."
怎么能解決這個問題
我的模型是:
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; }
}
我的存儲庫來自Get方法
public IEnumerable<EstablishmentDetails> GetAllEstablishmentDetails()
{
if (Convert.ToInt32(mCollection.Count()) > 0)
{
var EstablishmentDetailsCollection = mCollection.FindAllAs(typeof(EstablishmentDetails));
if (EstablishmentDetailsCollection.Count() > 0)
{
foreach (EstablishmentDetails item in EstablishmentDetailsCollection)
{
establishmentDetails.Add(item);
}
}
}
var results = establishmentDetails.AsQueryable();
return results;
}
我的Post方法庫
public EstablishmentDetails Add(EstablishmentDetails ed)
{
if (string.IsNullOrEmpty(ed.Id))
{
ed.Id = Guid.NewGuid().ToString();
}
mCollection.Save(ed);
return ed;
}
而不是使用
ed.Id = Guid.NewGuid().ToString();
我用了
ed.Id = MongoDB.Bson.ObjectId.GenerateNewId().ToString();
用於生成Id
它的工作正常:)
Guid.NewGuid()不會產生ObjectId。 Object Id是12字節數據結構,Guid產生16byte十六進制字符串(不帶' - ')
你應該刪除屬性[BsonRepresentation(BsonType.ObjectId)]
您可以在實體中使用任何字符串作為Id,例如'HiDude'和任何utf8格式的字符串。
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