Error grouping by formated date column in react

[Robert]

Hello,

I am trying to group by a date formated column and I get the error: 

Uncaught TypeError: value.getDate is not a function

    at date-formatter.js:99

    at Object.ValueFormatter.toView (value-formatter.js:49)

    at Data.formatGroupColumn (data.js:394)

    at _loop_2 (util.js:157)

    at Function.DataUtil.group (util.js:178)

    at JsonAdaptor.onGroup (adaptors.js:234)

    at JsonAdaptor.processQuery (adaptors.js:91)

    at DataManager.executeLocal (manager.js:121)

Grouping by other columns works OK.

Column declaration:

var groupOptions: GroupSettingsModel = {

    showDropArea: true,

    showGroupedColumn: true,

  };

var dateFormat: object = {type:'date', format:'dd/MM/yyyy'};

<GridComponent

...

  allowGrouping={true}

  groupSettings={groupOptions}

...

 >

  <ColumnsDirective>

<ColumnDirective

   field='activityTime'

   headerText='Time'

   type='date'

   format={dateFormat}

   enableGroupByFormat={true}

></ColumnDirective>

Thanks in advance,

Robert

[Rajapandiyan Settu]

Hi Robert, 

Greetings from syncfusion support. 

Query : I am trying to group by a date formated column and I get the error:. 

We are unable to reproduce the reported problem at our end, grouping date formatted column is working fine. Refer the below sample for more information. 

Sample : https://stackblitz.com/edit/react-rbn4hz-ghvmha?file=index.js 

If you still face the same problem, please share the below details to find the root cause. 

1. Share the full code you have used.
2. Share the packages version of syncfusion controls you have used.
3. Which type of datasource you used? Local/remote (share the adaptor details)
4. Share screenshot (or) example code of datasource for that date column
5. If possible share the issue reproduced sample (or) make the issue in the given sample and share with us.

Regards, 

Rajapandiyan S