{"action":"opened","issue":{"url":"https://api.github.com/repos/adrianaisemberg/CLAP/issues/36","labels_url":"https://api.github.com/repos/adrianaisemberg/CLAP/issues/36/labels{/name}","comments_url":"https://api.github.com/repos/adrianaisemberg/CLAP/issues/36/comments","events_url":"https://api.github.com/repos/adrianaisemberg/CLAP/issues/36/events","html_url":"https://github.com/adrianaisemberg/CLAP/issues/36","id":76799650,"number":36,"title":"Required property for `Parameter` not working","user":{"login":"masaeedu","id":3674056,"avatar_url":"https://avatars.githubusercontent.com/u/3674056?v=3","gravatar_id":"","url":"https://api.github.com/users/masaeedu","html_url":"https://github.com/masaeedu","followers_url":"https://api.github.com/users/masaeedu/followers","following_url":"https://api.github.com/users/masaeedu/following{/other_user}","gists_url":"https://api.github.com/users/masaeedu/gists{/gist_id}","starred_url":"https://api.github.com/users/masaeedu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/masaeedu/subscriptions","organizations_url":"https://api.github.com/users/masaeedu/orgs","repos_url":"https://api.github.com/users/masaeedu/repos","events_url":"https://api.github.com/users/masaeedu/events{/privacy}","received_events_url":"https://api.github.com/users/masaeedu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-05-15T17:41:19Z","updated_at":"2015-05-15T17:41:19Z","closed_at":null,"body":"I'm trying to validate the parameters I'm given using the `Required` property on my `Parameter` attributes, but it doesn't seem to do anything.\r\n\r\n        private static void Start (\r\n            [Parameter(Required = true, Description = \"The defect number.\")] int? n,\r\n            [Parameter(Required = true, Description = \"The workspace folder parent.\")] string dir)\r\n        {\r\n            Console.WriteLine(\"{0}, {1}\", n, dir);\r\n        }\r\n\r\nInvoking this application with no arguments just results in `,` being logged (no errors). Am I misunderstanding how `Required` is supposed to work?"}}