Call SP in LINQ

Question

I try to call storerprocedure in LINQ but this show error

i try this sp

ALTER procedure [dbo].[grid_data]
@region varchar(50),
@fromdate datetime,
@todate datetime
as
Select tblRV.ID as ID, tblRV.Owner, tblRV.Regno,
       (Select Count(*) as total from tblvv WHERE MID = tblRV.ID and Name <> '')
                as total,tblRV.MA, tblRV.MS
from tblReg inner join tblRV On tblReg.RID = tblRV.RID
WHERE tblReg.StartDate >= @fromdate AND tblReg.EndDate <= @todate
and tblReg.Region = @region
order by tblRV.Owner

and code

[WebMethod]
        public static string search_data(DateTime fromdate, DateTime todate, string region)
        {
            try
            {
                string result = "";
                TrackDataEntities1 ts = new TrackDataEntities1();
                var dq = ts.griddata(fromdate, todate, region);
                DataTable dt = new DataTable();

                dt.Columns.Add("ID", typeof(int));
                dt.Columns.Add("Owner", typeof(string));
                dt.Columns.Add("RegNo", typeof(string));
                dt.Columns.Add("total", typeof(string));
                dt.Columns.Add("MA", typeof(string));
                dt.Columns.Add("MS", typeof(string));
                foreach (var c in dq)
                {
                    dt.Rows.Add(c.ID, c.owner, c.RegNo, c.total, c.MA, c.MS);
                }

                result = DataSetToJSON(dt);

                return result;
            }
            catch (Exception)
            {
                throw new Exception();


            }

        }

        public static string DataSetToJSON(DataTable dt)
        {

            Dictionary<string, object> dict = new Dictionary<string, object>();

            object[] arr = new object[dt.Rows.Count + 1];

            for (int i = 0; i <= dt.Rows.Count - 1; i++)
            {
                arr[i] = dt.Rows[i].ItemArray;
            }

            dict.Add("response", arr);

            JavaScriptSerializer json = new JavaScriptSerializer();
            return json.Serialize(dict);

        }

 but this show error on this line 

foreach (var c in dq)

 

 foreach statement cannot operate on variables of type 'int' because 'int' does not contain a public definition for 'GetEnumerator'