DbContext ExecuteSqlCommand always return -1

Hi Guys,

I am using DbContext ExecuteSqlCommand to execute below stored procedure but i always get -1 even if there is 1 record or no records.

SP

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[SprFindPlaceByPlaceName] 
(	
	@PlaceName	nvarchar (500),
	@PlaceNameQuoted nvarchar(502),
	@CivilParish	nvarchar (500),
	@CivilParishQuoted nvarchar(502),
	@localAdmin	nvarchar (500),
	@localAdminQuoted nvarchar(502),
	@WiderAdmin	nvarchar (500),
	@WiderAdminQuoted nvarchar(502),
	@Country	nvarchar (60),
	@CountryQuoted nvarchar(62),
	@DateRange	varchar (50),
	@DateRangeQuoted Varchar(52)

 )
AS		
	

	DECLARE @sql		nvarchar(2000)
	DECLARE @where		nvarchar(2000)
	DECLARE @fields		nvarchar(2000)
	
	SET @sql = ''
	SET @where = ''
	SET @fields = ''
	
	SET @where += 'Where TcRecords.RecordId = SA.RecordId  '
	SET @where += ' AND SA.ItemTypeId = 48 and PlaceName = N''' + @PlaceName + ''''


		SET @where += ' AND CivilParish = N''' + @CivilParish + ''''
		SET @fields +=  ', CivilParish'
		SET @where += ' AND LocalAdminUnit = N''' + @localAdmin + ''''
		SET @fields +=  ', LocalAdminUnit as LocalAdmin'
		SET @where += ' AND WiderAdminUnit = N''' + @WiderAdmin + ''''
		SET @fields +=  ', WiderAdminUnit as WiderAdmin'
		SET @where += ' AND Country = N''' + @Country + ''''
		SET @fields +=  ', Country'
		SET @where += ' AND DateRange = N''' + @DateRange + ''''
		SET @fields +=  ', DateRange'

	SET @sql = 'SELECT MainName as PlaceName'
	SET @sql += @fields
	SET @sql += ', ItemXob, TcRecords.itemtypeid, TcRecords.RecordId, 
				TcRecords.LastModifiedOn, TcRecords.LastModifiedBy
				FROM TcRecords,  TcShreddedAuthority as SA '
	SET @sql += @where

	PRINT @sql
	EXEC sp_executesql @stmt = @sql
	
	RETURN

C#

try
            {
                var affectedRows = db.Database.ExecuteSqlCommand("exec SprFindPlaceByPlaceName @PlaceName, @PlaceNameQuoted, @CivilParish, @CivilParishQuoted, @localAdmin, @LocalAdminQuoted, @WiderAdmin, @WiderAdminQuoted, @Country, @CountryQuoted, @DateRange, @DateRangeQuoted",
                    new SqlParameter("@PlaceName", p_placeName),
                    new SqlParameter("@PlaceNameQuoted", placeNameQuoted),
                    new SqlParameter("@CivilParish", p_civilParish),
                    new SqlParameter("@CivilParishQuoted", civilParishQuoted),
                    new SqlParameter("@localAdmin", p_localAdmin),
                    new SqlParameter("@LocalAdminQuoted", localAdminQuoted),
                    new SqlParameter("@WiderAdmin", p_widerAdmin),
                    new SqlParameter("@WiderAdminQuoted", widerAdminQuoted),
                    new SqlParameter("@Country", p_country),
                    new SqlParameter("@CountryQuoted", countryQuoted),
                    new SqlParameter("@DateRange", p_dateRange),
                    new SqlParameter("@DateRangeQuoted", dateRangeQuoted));

                if (affectedRows != 0)
                {
                    result.Result = false;
                    result.FailureDescription.Add("Place name is not unique");                   
                }

            }
            catch (Exception ex)
            {
                result.Result = false;
                result.FailureDescription.Add(ex.Message);               
            }

Many Thanks

Shabbir