Row Index with in the Data Table in asp.net

 foreach (DataRow drow in dtbl.Rows)
        {
            int irow = dtbl.Rows.IndexOf(drow);
            DevExpress.Web.ASPxEditors.ASPxCheckBox chkIsolated = (DevExpress.Web.ASPxEditors.

ASPxCheckBox)Aspxgrid2.FindRowCellTemplateControl(irow, null, "chkIso");
            if (chkIsolated.Checked == true)
            {
                drow["isIsolate"] = true;
            }    
}

In the above Example also described about Checkbox list of devexpress with in the devexpress gridview in asp.net