Support for EF 6.3, targeting net45 and netstandard2.1

[jtheisen]

The new version of EntityFramework 6.3 has an additional target, netstandard2.1, allowing it to be used with .NET Core 3.

I would assume that, for LINQKit EF6's incarnation, to support that new target also, it's "only" a package management issue rather than requiring any code changes.

[StefH]

Seems reasonable. I will investigate if LinqKit and LinqKit.EntityFramework can also Target netstandard 2.1 + EF 6.3

[StefH]

I can upload a preview version to MyGet so that you can test, would that help?

[jtheisen]

It's not extremely pressing in my case, but if you give me a link I'll try it out, thanks!

[ynauls]

any updates? looking for .netstandard2.1 support

[jtheisen]

Btw, I'm not sure if LINQKit.Core needs a new release at all. I think it already has netstandard2.0 as a target. Only the EntityFramework package (LINQKit.EntityFramework) hasn't, and there it needs to be 2.1 as that is the only version of netstandard that the new EF is targeting (for reasons unknown to me).

[StefH]

@ynauls
1.1.17-preview-01 is available for testing at MyGet : https://www.myget.org/F/linqkit/api/v3/index.json

[ynauls]

@StefH, I needed this to upgrade to EF 3, I was getting the same error described here #100 by @brunosantosrhsenso. Using 1.1.17-preview, I get get past that error, but now I getting the same error described here #100 by @joshmouch

[StefH]

I need to update the code because ef3 now supports real async enumerable.

[StefH]

@ynauls
New preview is uploaded : LinqKit 1.1.17-preview-02 which works with EFCore 3.

Please test.

[ynauls]

@StefH, LinqKit 1.1.17-preview-02 looks good on initial pass. Will keep testing.

[ynauls]

@StefH, when can we expect 1.1.17 on NuGet?

[StefH]

I'm waiting for verification on this one also:#102

Once that's correct, I'll create a NuGet.

[StefH]

#103