Hi Priya,

Feel free to contact me if you have any other questions.

Thank You 

Hi Priya,

I would suggest you to handle the InitializeRow event and set the CssClass property for the desired cells:

protected void WebDataGrid1_InitializeRow(object sender, Infragistics.Web.UI.GridControls.RowEventArgs e)

{    

    e.Row.Items[1].CssClass = "myClass";

}

If you have any further questions, please do not hesitate to ask.

Thanks Nikolay.If data is changing dynamically then how can that be achieved using CSSClass

In code-behind you can only set CssClass for a grid cell.