{"action":"opened","issue":{"url":"https://api.github.com/repos/ant-design/ant-design/issues/13426","repository_url":"https://api.github.com/repos/ant-design/ant-design","labels_url":"https://api.github.com/repos/ant-design/ant-design/issues/13426/labels{/name}","comments_url":"https://api.github.com/repos/ant-design/ant-design/issues/13426/comments","events_url":"https://api.github.com/repos/ant-design/ant-design/issues/13426/events","html_url":"https://github.com/ant-design/ant-design/issues/13426","id":387132003,"node_id":"MDU6SXNzdWUzODcxMzIwMDM=","number":13426,"title":"【TreeSelect】wish to update halfCheckedKeys when unselect","user":{"login":"SirlLight","id":17821398,"node_id":"MDQ6VXNlcjE3ODIxMzk4","avatar_url":"https://avatars0.githubusercontent.com/u/17821398?v=4","gravatar_id":"","url":"https://api.github.com/users/SirlLight","html_url":"https://github.com/SirlLight","followers_url":"https://api.github.com/users/SirlLight/followers","following_url":"https://api.github.com/users/SirlLight/following{/other_user}","gists_url":"https://api.github.com/users/SirlLight/gists{/gist_id}","starred_url":"https://api.github.com/users/SirlLight/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SirlLight/subscriptions","organizations_url":"https://api.github.com/users/SirlLight/orgs","repos_url":"https://api.github.com/users/SirlLight/repos","events_url":"https://api.github.com/users/SirlLight/events{/privacy}","received_events_url":"https://api.github.com/users/SirlLight/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-12-04T05:57:04Z","updated_at":"2018-12-04T05:57:04Z","closed_at":null,"author_association":"NONE","body":"- [ ] I have searched the [issues](https://github.com/ant-design/ant-design/issues) of this repository and believe that this is not a duplicate.\r\n\r\n### What problem does this feature solve?\r\n【Scenario】\r\n    \r\n    When I select or unselect a child node, I wish to get all of the checked or halfChecked parent nodes.\r\n\r\n【Current】\r\n\r\n    At present I can only get the halfCheckedKeys by using onSelect. And there is a problem, I can only trigger this method when I select a value, if i unselect, it will not to be triggered and i will not to get the halfCheckedKeys.\r\n\r\n### What does the proposed API look like?\r\nI wish to get halfCheckedKeys in the 'extra' argument when triggering the onChange event.\r\n\r\n\r\n<!-- generated by ant-design-issue-helper. DO NOT REMOVE -->"}}
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