ExpressionBinderBase issue with .NET 6

[ysmoradi]

This exception should occur in ASP.NET Core OData 8 too, because I'm talking about the code which exists in Shared section of repository codes

I've updated my owin / web api 2 project to .NET 6 and I'm getting a Sequence contains more than one matching element at following:

internal static readonly MethodInfo EnumTryParseMethod = typeof(Enum).GetMethods()
                        .Single(m => m.Name == "TryParse" && m.GetParameters().Length == 2);

https://github.com/OData/WebApi/blob/master/src/Microsoft.AspNet.OData.Shared/Query/Expressions/ExpressionBinderBase.cs#L44-L45

Assemblies affected

OData WebApi lib 7.5.8

Reproduce steps

Run following in .NET 6 console app:

typeof(Enum).GetMethods()
                        .Single(m => m.Name == "TryParse" && m.GetParameters().Length == 2)

Expected result

TryParse method should get reflected.

Actual result

Invalid operation exception

Additional detail

In .NET 5 and older versions, we only have TryParse method which accepts a string value.
In .NET 6, a new overload has been added which accepts ReadOnlySpan<char>

[habbes]

Hi @ysmoradi thanks for reporting this. Would you be willing to contribute a PR to fix this? We'd be happy to review your PR and support you in the process.

[ysmoradi]

Thanks, @habbes
I've linked PR #2520

[Treit]

@habbes I am hitting this issue attempting to update some projects to .NET 6. The problem I am having is that the newest NuGet package for this project does not support .NET Standard 2.0.

We have a mixed codebase that consists of both .NET Framework and .NET Core projects and the code that is using the Microsoft.AspNetCore.OData package (and hitting this bug) is a .NET Standard 2.0 project that is shared by both .NET Framework and .NET Core projects.

Is it possible to backport this fix to a version of the NuGet package that support .NET Standard 2.0?

[Treit]

I just discovered that the 7.5.12 version of the package, which is .NET Standard compatible, appears to have this fix so I am unblocked. Thanks!