Class with property interface of List

If you have class:

class ClassWithPropertyInterfaceOfList
        {
            public IList<string> List { get; set; }
            public IDictionary<string, string> Dictionary { get; set; }

            public ISet<string> Set { get; set; }
        }

and create object:

            var expected = new ClassWithPropertyInterfaceOfList
            {
                List = new List<string> { "Item1" },
                Set = new HashSet<string> { "Item1" },
                Dictionary = new Dictionary<string, string> { { "Key", "Value" } }
            };

I’ve got exception:

ExtendedXmlSerializer.ExtensionModel.References.CircularReferencesDetectedException was unhandled by user code HResult=-2146233088 Message=The provided instance of type ‘ExtendedXmlSerializer.Tests.ExtensionModel.Xml.ExtendedXmlSerializerTests+ClassWithPropertyInterfaceOfList’ contains circular references within its graph. Serializing this instance would result in a recursive, endless loop. To properly serialize this instance, please create a serializer that has referential support enabled by extending it with the ReferencesExtension. Source=ExtendedXmlSerializer StackTrace: at ExtendedXmlSerializer.ExtensionModel.References.ReferenceAwareSerializers.Serializer.Write(IFormatWriter writer, Object instance) in C:\Work\ExtendedXmlSerializer\src\ExtendedXmlSerializer\ExtensionModel\References\ReferenceAwareSerializers.cs:line 77 at ExtendedXmlSerializer.ExtensionModel.Xml.ExtendedXmlSerializer.Serialize(XmlWriter writer, Object instance) in C:\Work\ExtendedXmlSerializer\src\ExtendedXmlSerializer\ExtensionModel\Xml\ExtendedXmlSerializer.cs:line 55 at ExtendedXmlSerializer.ExtensionModel.Xml.InstanceFormatter.Get(Object parameter) in C:\Work\ExtendedXmlSerializer\src\ExtendedXmlSerializer\ExtensionModel\Xml\InstanceFormatter.cs:line 50 at ExtendedXmlSerializer.ExtensionModel.Xml.Extensions.Serialize(IExtendedXmlSerializer this, IXmlWriterFactory factory, Func`1 stream, Object instance) in C:\Work\ExtendedXmlSerializer\src\ExtendedXmlSerializer\ExtensionModel\Xml\Extensions.cs:line 132 at ExtendedXmlSerializer.ExtensionModel.Xml.Extensions.Serialize(IExtendedXmlSerializer this, Object instance) in C:\Work\ExtendedXmlSerializer\src\ExtendedXmlSerializer\ExtensionModel\Xml\Extensions.cs:line 118 at ExtendedXmlSerializer.Tests.Support.SerializationSupport.Assert[T](T instance, String expected) in C:\Work\ExtendedXmlSerializer\test\ExtendedXmlSerializer.Tests\Support\SerializationSupport.cs:line 46 at ExtendedXmlSerializer.Tests.ExtensionModel.Xml.ExtendedXmlSerializerTests.PropertyInterfaceOfList() in C:\Work\ExtendedXmlSerializer\test\ExtendedXmlSerializer.Tests\ExtensionModel\Xml\ExtendedXmlSerializerTests.cs:line 205 InnerException:

I’ll add test to repo.

[Mike-E-angelo]

v3 it’s an unofficial project at the moment, and I probably shouldn’t have mentioned it. Trying to pump myself into it. 😆

For some context, the plan is to create a new serializer as a separate project that supports numerous formats and then have ExtendedXmlSerializer be the XML version (along with classical support).

I emphasize plan as every developer has a plan until their code punches them in their face. 🤣 That’s how it is for me, anyway.

In any case, I have captured our discussion here: https://github.com/SuperDotNet/Super.NET/issues/27

[MagicAndre1981]

ok, the code stops because I configured VS to stop at this exception. I see the code works and generates XML and deserialized objects include the references again.

I see you catch the exception and ignore it by still writing the content in ReferenceAwareSerializers.cs

catch (CircularReferencesDetectedException e)
{
     e.Writer.Write(writer, instance);
}

I configured VS to stop because I saw this CircularReferencesDetectedException before app closes and debugging stops 🤔 🤷‍♂️