Hello Zep,

Thank you for your patience!

I have reviewed the provided information so far and I have tried to reproduce the issue by the given code, but I didn't had any access. 

Could you please provide an isolated working code sample so I can test it and investigate the source of the issue?

Thank you in advance!

Hello zep lin,

Thank you for the information.  I will need a little more time to look into this issue.  In an effort to get you a solution more quickly, I have asked my colleagues in another office to assist with this.

If you have any further questions or concerns with this, please let us know.

Thanks Michael for the response.

1) I am using 2013.2 version of infragistics. Version 4.13.2.2157

2) This method converts my collection to json and then passes it on to the grid:

public ActionResult ConvertToJson<T>(ResponseWrapper<T> result)
        {
            ResponsePacket<T> dataViewModel = new ResponsePacket<T>();
            JsonResult jsonResult = new JsonResult();

            var pageSize = HttpUtility.ParseQueryString(Request.Url.Query).Get("pageSize");
            var pageIndex = HttpUtility.ParseQueryString(Request.Url.Query).Get("page");

            if (pageSize == null || pageIndex == null)
            {
                dataViewModel.Records = result.Content;
                dataViewModel.RecordCountKey = result.recordCountKey;
                jsonResult.Data = dataViewModel.Records;
                jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
            }
            else
            {
                dataViewModel.Records = result.Content.AsQueryable();
                dataViewModel.RecordCountKey = result.recordCountKey;
                jsonResult.Data = dataViewModel;
                jsonResult.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
            }

            return jsonResult;

        }

The grid model is set up on my controller & the gridModel is generic in a way that it is for all the entities & the columns are set up dynamically like this :

 gridModel.Columns.Add(new GridColumn()
                    {

                       //record is my result set which contains the MetaData of the database table
                        HeaderText = record.DisplayName,   
                        Key = record.ColumnName,
                        DataType = record.DataType
                    });