Hello Karthik,

Persisting the expansion state is currently not provided out of the box. What I can suggest as a workaround is saving this expansion state before binding and restoring it after data is bound. Saving could be achieved by looping trough the grouped rows collection and storing every item`s data-state attribute. Afterwards, for restoring the state this collection is looped again and states are compared. If they are different a click is triggered for this row. For example:

..
{
     name: "Updating",
     rowAdded: function(evt,ui){
     saveState($("#grid1").data("igGrid"));
     $("#grid1").igGrid("dataBind");
     restoreState($("#grid1").data("igGrid"));
     }
    }
..
function saveState($grid) {
  $grid._groupState = {}; var $el;
  $grid.element.find("tr.ui-iggrid-groupedrow").each(function (ix, el) {
    $el = $(el);
    $grid._groupState[$el.data("id")] = $el.attr("data-state");
  });
 }

 function restoreState($grid) {
  for(rowId in $grid._groupState) {
   var $row = $grid.element.find("tr[data-id=" + rowId + "]");
   if ($row.attr("data-state") !== $grid._groupState[rowId]) {
    $row.find("td.ui-iggrid-expandcolumn").mousedown();
   }
  }
 }

I am also attaching a small sample illustrating my suggestion for your reference.

Additionally, I would suggest you logging a product idea on our product ideas web site - http://ideas.infragistics.com

Steps to create your idea:

 - Log into the Infragistics Product Ideas site at: http://ideas.infragistics.com

- Navigate to the product  of your choice.

- Add your product idea and be sure to be specific and provide us as much details as possible.

  Explain the context in which a feature would be used. Remember that for your suggestion to be successful, you need other members of the community to vote for it.

  Include link to this forum thread in your idea.

I hope this helps.

Performing a data bind causes this issue:

http://ko.infragistics.com/community/forums/t/96076.aspx

As a user, they will collapse certain groups and whenever a new row is added the grid will reset the state of the groups that are collapsed.  How do I preserve the state of the groups across data binds?

Hello,

@Karthik, please let me know if you need any further assistance with this matter.

@Daniel, attached you wil find the dataSource.js file.

The zip file didn't include the datasource.js.