Link on delegate inside of anonymous method

[gafter]

@vsfeedback commented on Fri Feb 22 2019

I suggest to add "this"-analog for anonymous methods for easier use when it is essential to remove handler from event inside of handler itself
before

Timer timer = new Timer();
//ignoring right signature for simplifying
Action a = null;
a = () =>
{
    //Dosmth
    timer.Elapsed -= a;
}
timer.Elapsed += a;

after:

Timer timer = new Timer();
//ignoring right signature for simplifying
timer.Elapsed += () =>
{
    //DoSmth<br>   //thisDelegeate is the link on current delegate. Exactly this i suggest to add<br>    timer.Elapsed -= thisDelegeate;
}

This issue has been moved from https://developercommunity.visualstudio.com/content/idea/460725/link-on-delegate-inside-of-anonymous-method.html
VSTS ticketId: 795742
These are the original issue comments:

Jane Wu [MSFT] on 2/18/2019, 11:58 PM (3 days ago):

Thank you for taking the time to provide your suggestion. We will do some preliminary checks to make sure we can proceed further. We'll provide an update once the issue has been triaged by the product team.

---

@gafter commented on Sat Feb 23 2019

This is a language request. Moving to csharplang

[Joe4evr]

@gafter Bit off-topic, but can you start using this instead to move threads in-place?

[SilentSin]

Rather than needing a new keyword, this feature could probably reuse the delegate keyword.

timer.Elapsed += () =>
{
    //DoSmth
    timer.Elapsed -= delegate;
}

[gafter]

can you start using this instead to move threads in-place

No, because I am not an admin for these repositories.

[kharai-tor]

The delegate keyword might not be a good idea. That's a lambda, not a delegate and even though there's an implicit conversion between the two, it's still incorrect and therefore confusing.

[jnm2]

@Joe4evr / @gafter

Please send feedback to GitHub about this. I haven't been able to use the issue transfer feature yet at NUnit either for the same reason, and it would be really useful there.

https://twitter.com/jnm236/status/1098052245894193152