Write Files directly on Response ASP.Net C#

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.IO;

///

/// Summary description for Util

///

namespace Utility

{

    public class FileUtil

    {

        public FileUtil()

        {

            //

            // TODO: Add constructor logic here

            //

        }

        static public void writeFileToResponse(string filePath,HttpResponse Response)

        {

            try

            {

           

            string FileName = Path.GetFileName(filePath);

            Response.Clear();

            Response.AddHeader("Content-Disposition", "attachment; filename=" + FileName);

            //Response.ContentType = sContentType;

            Response.WriteFile(filePath);

            Response.Flush();

            File.Delete(filePath);

            Response.End();

            }

            catch (System.Exception ex)

            {

            }

        }

    }

}