public async Task <ActionResult> ViewDateRangeLeads(DateTime?from, DateTime?to)
        {
            if (from == null || to == null || from > to)
            {
                return(Json("Invalid", JsonRequestBehavior.AllowGet));
            }
            to = to.Value.AddDays(1);

            tbl_emp_info loggedInUserInfo = Utilities.GetLoggedInUserInfo(User.Identity.Name);
            int?         loggedInUser     = loggedInUserInfo.Emp_ID;

            if (loggedInUser == null)
            {
                return(new HttpUnauthorizedResult());
            }
            List <tbl_crm_leads> leadsList = new List <tbl_crm_leads>();

            if (User.IsInRole(Permissions.CRM.VIEW_ALL_LEADS))
            {
                leadsList = await leadsManager.GetDateRangeAllLeadsAsync(from, to).ConfigureAwait(false);
            }
            else if (User.IsInRole(Permissions.CRM.VIEW_OWN_LEADS))
            {
                leadsList = await leadsManager.GetDateRangeOwnLeadsAsync(from, to, loggedInUser).ConfigureAwait(false);
            }
            return(PartialView(leadsList));
        }