MobileFormatter - DateTime.Kind lost after deserialization

[GlenYappa]

I am in the process of upgrading a large business object library from Csla 4 to Csla 6.2.2 while at the same time moving from .Net Framework 4.7.2 to .Net Standard 2.0. One issue that I am having is DateTime properties are losing the DateTime.Kind when deserialized. In the example below I have a simple ReadOnly csla object with a nullable Datetime and I am serializing/deserializing with the MobileFormatter directly just for test purposes. You can see that after deserialization the Kind value is Unspecified. Is this a known issue?

var t = TestHarness.App.DataPortalFactory.GetPortal<TestHarness.DateTimeTest>().Create();
t.ID = Guid.NewGuid();
t.TestDate = DateTime.Now;

Console.WriteLine(t);

var formatter = new Csla.Serialization.Mobile.MobileFormatter(TestHarness.App.AppContext);

byte[] bytes = new byte[0];
using (MemoryStream stream = new MemoryStream())
{
	formatter.Serialize(stream, t);
	bytes = stream.ToArray();
}

using (MemoryStream stream = new MemoryStream(bytes))
{
	t = (TestHarness.DateTimeTest)formatter.Deserialize(stream);
}

Console.WriteLine(t);

ID = ba5ddc50-75ea-4b7d-b656-7fc12faab73e
TestDate = 6/2/2023 8:59:27 AM
DateTime Kind = Local

ID = ba5ddc50-75ea-4b7d-b656-7fc12faab73e
TestDate = 6/2/2023 8:59:27 AM
DateTime Kind = Unspecified

Thanks

[rockfordlhotka]

This is not a known issue. I suspect that the writer(s) and readers in Csla.Serialization.Mobile need to be enhanced to serialize more than just the ticks value for a DateTime.

csla/Source/Csla/Serialization/Mobile/CslaBinaryWriter.cs

Line 227 in 91921c0

case TypeCode.DateTime:

[rockfordlhotka]

I've filed this as a backlog issue - #3363

[GlenYappa]

thanks