SqlDataReader error: System.IndexOutOfRangeException: H_name1

hi 

below is my code

   private void GetCustomersPageWiseP1(int pageIndex, string linkButtonText)
    {
         using (SqlConnection conn = General.GetConnection())
        {
            using (SqlCommand cmd = General.GetCommand("GetCustomersPageWiseS1", conn))
            {
                string val = ViewState["LinkButtonValue"].ToString();
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.AddWithValue("@behcode", Server.UrlDecode(Request.QueryString["BehCode"]));
                cmd.Parameters.AddWithValue("@PageIndex", pageIndex);
                cmd.Parameters.AddWithValue("@PageSize", PageSize);
                cmd.Parameters.Add("@RecordCount", SqlDbType.Int, 4);
                cmd.Parameters.AddWithValue("@classification", ViewState["LinkButtonValue"].ToString());
                cmd.Parameters["@RecordCount"].Direction = ParameterDirection.Output;
                conn.Open();
                SqlDataReader idr = cmd.ExecuteReader();
                if (idr.HasRows)
                {
                    DDLP.DataSource = idr;
                    DDLP.DataBind();
                    if (idr["H_name1"].ToString() == "خدماتی و رفاهی")
                    {
                        imgpro.Visible = false;
                        ImgserviceM.Visible = true;
                    }
                    else
                    {
                        imgpro.Visible = true;
                        ImgserviceM.Visible = false;
                    }
                    lblproduct.Visible = true;
                }
                else
                {
                    DDLP.Visible = false;
                }
                idr.Close();
                this.PopulatePagerPL(Convert.ToInt32(cmd.Parameters["@RecordCount"].Value), pageIndex);
            }
        }
    }

when I run page this error happen

H_name1

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  Exception Details: System.IndexOutOfRangeException: H_name1 Source Error: 

Line 517:                    DDLP.DataSource = idr;
Line 518:                    DDLP.DataBind();
Line 519:                    if (idr["H_name1"].ToString() == "خدماتی و رفاهی")
Line 520:                    {
Line 521:                        imgpro.Visible = false;

and SP

USE [behtop]
GO
/****** Object:  StoredProcedure [dbo].[GetCustomersPageWise1]    Script Date: 11/02/2014 08:41:35 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [dbo].[GetCustomersPageWise1]
  @H_name nvarchar(50)
  ,@subset nvarchar(30)
  ,@PageIndex INT = 1
  ,@PageSize INT = 5
  ,@RecordCount INT OUTPUT
  ,@Region nvarchar(10)
  ,@district nvarchar(20)
  ,@City nvarchar(30)
  ,@shoppingcenter nvarchar(30)
  ,@labeltext nvarchar(30) OUTPUT
  ,@labeltext1 nvarchar(30) OUTPUT
  ,@Id int
AS
BEGIN
      SET NOCOUNT ON;
      SELECT ROW_NUMBER() OVER
      (
            ORDER BY [House_p].[Date] desc
      )AS RowNumber
      ,[House_p].[ID]
      ,[House_p].[Name]
      ,[House_p].[Image]
      ,[House_p].[Date] 
      ,[House_p].[H_name1] 
      ,House_Info.Name as NameI
      ,[House_p].[Model]
      ,SUBSTRING(House_p.[Description],0,110)+'...' As Description
      ,(House_info.Code+'-'+House_info.Tell) as tellF
      ,House_Info.BehCode as Behcode
      INTO #Results
        FROM [House_p]
        JOIN [HOuse_info]      ON [House_p].[BehCode] = [HOuse_info].[BehCode]   
      WHERE  ([House_p].H_name=@H_name or [House_p].subset=@subset) and ([HOuse_info].Region = @Region or @Region='همه') and ([House_Info].District=@District or @District='همه') and ([House_Info].ShoppingCenter=@shoppingcenter or @shoppingcenter=N'کلیه اصناف در سطح شهر')
      SELECT @RecordCount = COUNT(*) 
      FROM #Results
      SELECT * FROM #Results
      WHERE (RowNumber BETWEEN(@PageIndex -1) * @PageSize + 1 AND(((@PageIndex -1) * @PageSize + 1) + @PageSize) - 1)
      DROP TABLE #Results
         SELECT @labelText=(SELECT H_name FROM TradeClass WHERE ID=@Id)
         SELECT @labelText1=(SELECT Subset FROM Subset_menu WHERE Subset=@Subset)
END

why this happen?

Best Regards

Neda