{"action":"created","issue":{"url":"https://api.github.com/repos/dotnet/corefx/issues/32641","repository_url":"https://api.github.com/repos/dotnet/corefx","labels_url":"https://api.github.com/repos/dotnet/corefx/issues/32641/labels{/name}","comments_url":"https://api.github.com/repos/dotnet/corefx/issues/32641/comments","events_url":"https://api.github.com/repos/dotnet/corefx/issues/32641/events","html_url":"https://github.com/dotnet/corefx/issues/32641","id":367290898,"node_id":"MDU6SXNzdWUzNjcyOTA4OTg=","number":32641,"title":"WPF on .NET Core needs TypeDescriptor on System.Xml.Linq.XElement","user":{"login":"rladuca","id":20006987,"node_id":"MDQ6VXNlcjIwMDA2OTg3","avatar_url":"https://avatars2.githubusercontent.com/u/20006987?v=4","gravatar_id":"","url":"https://api.github.com/users/rladuca","html_url":"https://github.com/rladuca","followers_url":"https://api.github.com/users/rladuca/followers","following_url":"https://api.github.com/users/rladuca/following{/other_user}","gists_url":"https://api.github.com/users/rladuca/gists{/gist_id}","starred_url":"https://api.github.com/users/rladuca/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rladuca/subscriptions","organizations_url":"https://api.github.com/users/rladuca/orgs","repos_url":"https://api.github.com/users/rladuca/repos","events_url":"https://api.github.com/users/rladuca/events{/privacy}","received_events_url":"https://api.github.com/users/rladuca/received_events","type":"User","site_admin":false},"labels":[{"id":147576403,"node_id":"MDU6TGFiZWwxNDc1NzY0MDM=","url":"https://api.github.com/repos/dotnet/corefx/labels/area-System.Xml","name":"area-System.Xml","color":"d4c5f9","default":false},{"id":145399957,"node_id":"MDU6TGFiZWwxNDUzOTk5NTc=","url":"https://api.github.com/repos/dotnet/corefx/labels/enhancement","name":"enhancement","color":"207de5","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/dotnet/corefx/milestones/21","html_url":"https://github.com/dotnet/corefx/milestone/21","labels_url":"https://api.github.com/repos/dotnet/corefx/milestones/21/labels","id":3242632,"node_id":"MDk6TWlsZXN0b25lMzI0MjYzMg==","number":21,"title":"3.0","description":".NET Core 3.0, next major release after 2.1. See [official release dates](https://github.com/dotnet/core/blob/master/roadmap.md) for details.\r\n\r\nWe will move important issues from Future to 3.0 as the priorities and dates for next release become more clear.","creator":{"login":"karelz","id":5776068,"node_id":"MDQ6VXNlcjU3NzYwNjg=","avatar_url":"https://avatars2.githubusercontent.com/u/5776068?v=4","gravatar_id":"","url":"https://api.github.com/users/karelz","html_url":"https://github.com/karelz","followers_url":"https://api.github.com/users/karelz/followers","following_url":"https://api.github.com/users/karelz/following{/other_user}","gists_url":"https://api.github.com/users/karelz/gists{/gist_id}","starred_url":"https://api.github.com/users/karelz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/karelz/subscriptions","organizations_url":"https://api.github.com/users/karelz/orgs","repos_url":"https://api.github.com/users/karelz/repos","events_url":"https://api.github.com/users/karelz/events{/privacy}","received_events_url":"https://api.github.com/users/karelz/received_events","type":"User","site_admin":false},"open_issues":293,"closed_issues":2434,"state":"open","created_at":"2018-04-04T16:40:10Z","updated_at":"2018-10-19T22:23:21Z","due_on":null,"closed_at":null},"comments":1,"created_at":"2018-10-05T16:54:24Z","updated_at":"2018-10-19T22:56:11Z","closed_at":null,"author_association":"NONE","body":"WPF has extension libraries for various types.  One of them is for System.Xml.Linq.XElement.\r\n\r\nIt expects that the TypeDescriptor for XElement contains the following property descriptors:\r\n- Elements\r\n- Descendants\r\n- Attribute\r\n- Element\r\n\r\nThis was previously provided by [XTypeDescriptor<T>.GetProperties with a special case for XElement](https://referencesource.microsoft.com/#System/compmod/system/componentmodel/CustomTypeDescriptor.cs,3575006103cb88da).  These seem to not exist in .NET Core and neither does the association of the TypeDescriptor with XElement ([see here](https://referencesource.microsoft.com/#System.Xml.Linq/System/Xml/Linq/XLinq.cs,3367036406d1344a)).\r\n\r\nWPF requires this in SystemXmlLinqExtension (the implementation of this is not on the external reference source so I cannot link it here).\r\n\r\ncc: @vatsan-madhavan, @ericstj "},"comment":{"url":"https://api.github.com/repos/dotnet/corefx/issues/comments/431521681","html_url":"https://github.com/dotnet/corefx/issues/32641#issuecomment-431521681","issue_url":"https://api.github.com/repos/dotnet/corefx/issues/32641","id":431521681,"node_id":"MDEyOklzc3VlQ29tbWVudDQzMTUyMTY4MQ==","user":{"login":"ericstj","id":8918108,"node_id":"MDQ6VXNlcjg5MTgxMDg=","avatar_url":"https://avatars3.githubusercontent.com/u/8918108?v=4","gravatar_id":"","url":"https://api.github.com/users/ericstj","html_url":"https://github.com/ericstj","followers_url":"https://api.github.com/users/ericstj/followers","following_url":"https://api.github.com/users/ericstj/following{/other_user}","gists_url":"https://api.github.com/users/ericstj/gists{/gist_id}","starred_url":"https://api.github.com/users/ericstj/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ericstj/subscriptions","organizations_url":"https://api.github.com/users/ericstj/orgs","repos_url":"https://api.github.com/users/ericstj/repos","events_url":"https://api.github.com/users/ericstj/events{/privacy}","received_events_url":"https://api.github.com/users/ericstj/received_events","type":"User","site_admin":false},"created_at":"2018-10-19T22:56:11Z","updated_at":"2018-10-19T22:56:11Z","author_association":"MEMBER","body":"@onovotny has a repro of this"}}
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