GH-46488 [C#] Switch to license expression

[thompson-tomo]

What changes are included in this PR?

Update to csproj property

Are these changes tested?

Yes

Are there any user-facing changes?

No

Closes #46488

• GitHub Issue: [C#] Switch to license expression #46488

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on GitHub? https://github.com/apache/arrow/issues/new/choose

Opening GitHub issues ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename the pull request title in the following format?

GH-${GITHUB_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - Contributing Overview

[github-actions]

⚠️ GitHub issue #46488 has been automatically assigned in GitHub to PR creator.

[kou]

Have you read this comment?

[thompson-tomo]

Yes but when you review the third party notices, they are referring to the other languages ie cpp. At the same time on reviewing the source code, I couldn't find a source file which didn't have the Apache licence header or wasn't auto generated. Based on that it should be possible to move most if not all packages from the deprecated property to the replacement.

[kou]

At the same time on reviewing the source code, I couldn't find a source file which didn't have the Apache licence header or wasn't auto generated.

How did you do it? Could you clarify it to clear our license?

BTW, we'll move csharp/ in apache/arrow to apache/arrow-dotnet: apache/arrow-dotnet#1

Can we work on this after it?

[thompson-tomo]

How did you do it? Could you clarify it to clear our license?

I manually went through checking files in each of the projects including the sub folders.

BTW, we'll move csharp/ in apache/arrow to apache/arrow-dotnet: apache/arrow-dotnet#1

Can we work on this after it?

sure that is fine

[CurtHagenlocher]

Thanks for the suggestion, @thompson-tomo! I've implemented the change at apache/arrow-dotnet#185.