Is [DocumentProperty(IgnoreProperty = true)] not supposed to ignore document properties? about arangoclient.net HOT 4 OPEN

@danludwig yes this is a bug, i should look into it. but for now you can use [JsonIgnore] json.net attribute for ignoring members

just be aware you should use embeded json.net
[ArangoDB.Client.Common.Newtonsoft.Json.JsonIgnore]

and you dont need JsonIgnore on overrided members

public abstract class ContactInfo
    {
        public SomeEnum SomeEnumValue { get; set; }
        [JsonIgnore]
        public abstract string ContactValue { get; }
    }

    public class ContactEmailInfo : ContactInfo
    {
        public string EmailAddress { get; set; }
        public override string ContactValue => EmailAddress;
    }

    public class ContactPhoneInfo : ContactInfo
    {
        public ulong PhoneNumber { get; set; }
        public string RegionCode { get; set; }
        public override string ContactValue => RegionCode;
    }

    public class UserDocument
    {
        public UserDocument()
        {
            ContactEmails = new List<ContactEmailInfo>();
            ContactPhones = new List<ContactPhoneInfo>();
        }
        public IList<ContactEmailInfo> ContactEmails { get; }
        public IList<ContactPhoneInfo> ContactPhones { get; }

        [JsonIgnore]
        public IReadOnlyCollection<ContactInfo> ContactInfos =>
          new ReadOnlyCollection<ContactInfo>(ContactEmails
            .Cast<ContactInfo>().Union(ContactPhones).ToArray());
    }

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Perfect, that is what I was looking for. Knowing about the embedded JSON.NET also helped me serialize enum values as string instead of int, using

[ArangoDB.Client.Common.Newtonsoft.Json.JsonConverter(typeof(ArangoDB.Client.Common.Newtonsoft.Json.Converters.StringEnumConverter))]
public SomeEnum SomeEnumValue { get; set; }

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let the issue be open till the bug is resolved

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In current version (v0.7.60) still having this issue + new problem.
[ArangoDB.Client.Common.Newtonsoft.Json.JsonIgnore] can't be used because new ArangoDB has no "Common" namespace so i have used only [Newtonsoft.Json.JsonIgnore] which worked for some properties.
New problem:
i have following class (for tesing ArangoDB vs MongoDB:
`using ArangoDB.Client; //Nuget: ArangoDB.Client by raoof hojat v0.7.60
using MongoDB.Bson; //Nuget: MongoDB.Driver by MongoDB, Inc v2.3.0

public class Person
{
[DocumentProperty(Identifier = IdentifierType.Key)]
public string Key { get; set; }
public string Fullname { get; set; }
public int Age { get; set; }

    // MongoDB
    [DocumentProperty(IgnoreProperty = true)]//ignore for ArangoDB - not working - bug https://github.com/ra0o0f/arangoclient.net/issues/34
   [Newtonsoft.Json.JsonIgnore] // proposed workaround for ArangoDB
    public MongoDB.Bson.ObjectId _id { get; set; }

}`
and i whanted ArangoDB to ignore "_id"

but after
db.Insert<Person>(person);
i am catching an exception "Unable to cast object of type 'System.String' to type 'MongoDB.Bson.ObjectId'."
Callstack:
at lambda_method(Closure , Object , Object ) at ArangoDB.Client.Property.DocumentIdentifierModifier.Modify(Object document, IDocumentIdentifierResult identifiers) at ArangoDB.Client.Collection.ArangoCollection.<InsertAsync>d__10.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at ArangoDB.Client.Collection.ArangoCollection1.d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at ArangoDB.Client.Utility.TaskUtils.ResultSynchronizer[T](Task1 task)
Also this workaround is not working in all cases.
Is there any chance to fix this bug, because i want to give ArangoDB the chance ;) ?

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