{"action":"created","issue":{"url":"https://api.github.com/repos/dotnet/corefx/issues/7861","repository_url":"https://api.github.com/repos/dotnet/corefx","labels_url":"https://api.github.com/repos/dotnet/corefx/issues/7861/labels{/name}","comments_url":"https://api.github.com/repos/dotnet/corefx/issues/7861/comments","events_url":"https://api.github.com/repos/dotnet/corefx/issues/7861/events","html_url":"https://github.com/dotnet/corefx/issues/7861","id":149377875,"number":7861,"title":"IEnumerable<DateTime> Select with formatting does not work (anymore)","user":{"login":"rmja","id":2112306,"avatar_url":"https://avatars.githubusercontent.com/u/2112306?v=3","gravatar_id":"","url":"https://api.github.com/users/rmja","html_url":"https://github.com/rmja","followers_url":"https://api.github.com/users/rmja/followers","following_url":"https://api.github.com/users/rmja/following{/other_user}","gists_url":"https://api.github.com/users/rmja/gists{/gist_id}","starred_url":"https://api.github.com/users/rmja/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rmja/subscriptions","organizations_url":"https://api.github.com/users/rmja/orgs","repos_url":"https://api.github.com/users/rmja/repos","events_url":"https://api.github.com/users/rmja/events{/privacy}","received_events_url":"https://api.github.com/users/rmja/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2016-04-19T07:51:54Z","updated_at":"2016-04-19T09:38:24Z","closed_at":null,"body":"Running on the latest bits in the `aspnetcirelease` feed.\r\n\r\nSteps to reproduce:\r\n```\r\nvar times = new List<DateTime>() { DateTime.Now };\r\nstring.Join(\",\", times.Select(x => x.ToString(\"yyyy\")))\r\n```\r\n\r\nExpected result: `2016`\r\nhttp://csharppad.com/gist/f08e21c1f701482902517b23e4117abc\r\n\r\nActual result: `19-04-2016 09:45:29`"},"comment":{"url":"https://api.github.com/repos/dotnet/corefx/issues/comments/211826197","html_url":"https://github.com/dotnet/corefx/issues/7861#issuecomment-211826197","issue_url":"https://api.github.com/repos/dotnet/corefx/issues/7861","id":211826197,"user":{"login":"jasonwilliams200OK","id":2031765,"avatar_url":"https://avatars.githubusercontent.com/u/2031765?v=3","gravatar_id":"","url":"https://api.github.com/users/jasonwilliams200OK","html_url":"https://github.com/jasonwilliams200OK","followers_url":"https://api.github.com/users/jasonwilliams200OK/followers","following_url":"https://api.github.com/users/jasonwilliams200OK/following{/other_user}","gists_url":"https://api.github.com/users/jasonwilliams200OK/gists{/gist_id}","starred_url":"https://api.github.com/users/jasonwilliams200OK/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jasonwilliams200OK/subscriptions","organizations_url":"https://api.github.com/users/jasonwilliams200OK/orgs","repos_url":"https://api.github.com/users/jasonwilliams200OK/repos","events_url":"https://api.github.com/users/jasonwilliams200OK/events{/privacy}","received_events_url":"https://api.github.com/users/jasonwilliams200OK/received_events","type":"User","site_admin":false},"created_at":"2016-04-19T09:38:24Z","updated_at":"2016-04-19T09:38:24Z","body":"It seems like in interactive mode, the correct `DateTime.ToString(string format)` overload is not being in `Select` predicate (instead `DateTime.ToString()` gets called). \r\nThis seems to be related to https://github.com/dotnet/roslyn/issues/5119 (note the `Interactive-*` issue labels in Roslyn repo).\r\ncc @gafter, @cston"}}