{"action":"closed","issue":{"url":"https://api.github.com/repos/ceolter/ag-grid/issues/1297","repository_url":"https://api.github.com/repos/ceolter/ag-grid","labels_url":"https://api.github.com/repos/ceolter/ag-grid/issues/1297/labels{/name}","comments_url":"https://api.github.com/repos/ceolter/ag-grid/issues/1297/comments","events_url":"https://api.github.com/repos/ceolter/ag-grid/issues/1297/events","html_url":"https://github.com/ceolter/ag-grid/issues/1297","id":193190597,"number":1297,"title":"field values become undefined, when applying grouping by drag n drop column","user":{"login":"rajgopalk","id":22521609,"avatar_url":"https://avatars.githubusercontent.com/u/22521609?v=3","gravatar_id":"","url":"https://api.github.com/users/rajgopalk","html_url":"https://github.com/rajgopalk","followers_url":"https://api.github.com/users/rajgopalk/followers","following_url":"https://api.github.com/users/rajgopalk/following{/other_user}","gists_url":"https://api.github.com/users/rajgopalk/gists{/gist_id}","starred_url":"https://api.github.com/users/rajgopalk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rajgopalk/subscriptions","organizations_url":"https://api.github.com/users/rajgopalk/orgs","repos_url":"https://api.github.com/users/rajgopalk/repos","events_url":"https://api.github.com/users/rajgopalk/events{/privacy}","received_events_url":"https://api.github.com/users/rajgopalk/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-12-02T18:55:45Z","updated_at":"2016-12-05T11:51:36Z","closed_at":"2016-12-05T11:51:36Z","body":"hi, in cell render at column level,initially it is working fine. but when iam doing grouping it gives error like \"Unable to get property 'claimNumber' of undefined or null reference\" .Before doing grouping is fine. i dont know why it is coming, can you tell me, whats wrong with my code.\r\n\r\n {\r\n               headerName: \"\", field: \"check_row\", width: 40, \r\n               cellRenderer: function (params) {\r\n                   if (params.data.claimNumber != undefined) {\r\n                       return '<input type=\\\"checkbox\\\" name=\\\"select\\\" ng-click=\"GetCheckBoxValues()\" />';\r\n                   }\r\n                   else {\r\n                       return \"\";\r\n                   }\r\n               }\r\n           },"}}
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