{"action":"opened","issue":{"url":"https://api.github.com/repos/NativeScript/NativeScript/issues/600","labels_url":"https://api.github.com/repos/NativeScript/NativeScript/issues/600/labels{/name}","comments_url":"https://api.github.com/repos/NativeScript/NativeScript/issues/600/comments","events_url":"https://api.github.com/repos/NativeScript/NativeScript/issues/600/events","html_url":"https://github.com/NativeScript/NativeScript/issues/600","id":101426099,"number":600,"title":"Evaluate binding expressions in event bindings","user":{"login":"hdeshev","id":63219,"avatar_url":"https://avatars.githubusercontent.com/u/63219?v=3","gravatar_id":"","url":"https://api.github.com/users/hdeshev","html_url":"https://github.com/hdeshev","followers_url":"https://api.github.com/users/hdeshev/followers","following_url":"https://api.github.com/users/hdeshev/following{/other_user}","gists_url":"https://api.github.com/users/hdeshev/gists{/gist_id}","starred_url":"https://api.github.com/users/hdeshev/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hdeshev/subscriptions","organizations_url":"https://api.github.com/users/hdeshev/orgs","repos_url":"https://api.github.com/users/hdeshev/repos","events_url":"https://api.github.com/users/hdeshev/events{/privacy}","received_events_url":"https://api.github.com/users/hdeshev/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/NativeScript/NativeScript/labels/1%20-%20Backlog","name":"1 - Backlog","color":"bfdadc"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-17T13:57:11Z","updated_at":"2015-08-17T13:57:11Z","closed_at":null,"body":"At the moment event bindings like:\r\n\r\n```xml\r\n<Button tap=\"{{ tapAction }}\" />\r\n```\r\nonly look for a `tapAction` function property on the current binding context. It would be nice if we could use a binding expression that lets us point to parent binding contexts. The most convenient scenario being a way to reference a parent view model method from a ListView item template:\r\n\r\n```xml\r\n<Button tap=\"{{ $parents['ListView'].tapAction }}\" />\r\n```"}}