protected void GetLeaveDates(string strLvAppId, string gridStatus, string strDateFrom, string strDateTo)
        {
            string strFromDate = "";
            string strToDate   = "";

            if (gridStatus == "A")
            {
                strFromDate = strDateFrom;
                strToDate   = strDateTo;
            }
            else if (gridStatus == "D")
            {
                strFromDate = strDateFrom;
                strToDate   = strDateTo;
            }
            else if (gridStatus == "AC")
            {
                strFromDate = strDateFrom;
                strToDate   = strDateTo;
            }

            DataTable dtLeaveDates = new DataTable();

            dtLeaveDates = objLeaveMgr.GetLeaveDates(strLvAppId);
            if (dtLeaveDates.Rows.Count > 0)
            {
                hfLDates.Value = "";
                foreach (DataRow dRow in dtLeaveDates.Rows)
                {
                    if (hfLDates.Value != "")
                    {
                        hfLDates.Value = hfLDates.Value + "," + Common.ReturnDateTimeInString(Common.DisplayDateTime(dRow["LevDate"].ToString(), false, Constant.strDateFormat), false, Constant.strDateFormat);
                    }
                    else
                    {
                        hfLDates.Value = Common.ReturnDateTimeInString(Common.DisplayDateTime(dRow["LevDate"].ToString(), false, Constant.strDateFormat), false, Constant.strDateFormat);
                    }
                }
            }
        }