CVS File from Generic Collection

CSVActionResult.cs

public class CsvFileActionResult<T> : System.Web.Mvc.ActionResult
    {
        public string FileName { get; set; }

        public IEnumerable<T> List { get; set; }

        protected virtual void Write(IEnumerable<T> list, TextWriter output)
        {
            PropertyDescriptorCollection props = TypeDescriptor.GetProperties(typeof(T));
            foreach (PropertyDescriptor prop in props)
            {
                output.Write(prop.DisplayName); // header
                output.Write(",");
            }
            output.WriteLine();

            foreach (T item in list)
            {
                foreach (PropertyDescriptor prop in props)
                {
                    string value = String.Empty;
                    DefaultValueAttribute defaultAttribute = GetAttribute<DefaultValueAttribute>(prop);
                    LimitToAttribute limitToAttribute = GetAttribute<LimitToAttribute>(prop);
                    if (prop.GetValue(item) != null)
                       value =  prop.Converter.ConvertToString(prop.GetValue(item));
                    else if (defaultAttribute != null)
                       value = prop.Converter.ConvertToString(defaultAttribute.Value);

                    if (limitToAttribute != null)
                        value = value.limitToSize(limitToAttribute.limitSize);

                    output.Write(value);
                    output.Write(",");
                }
                output.WriteLine();
            }
        }

        public T GetAttribute<T>( PropertyDescriptor prop) where T : Attribute
        {
            foreach (Attribute att in prop.Attributes)
            {
                var tAtt = att as T;
                if (tAtt != null) return tAtt;
            }
            return null;
        }

        public CsvFileActionResult(IEnumerable<T> list, string fileName)
        {

            List = list;
            FileName = fileName;
        }

        public override void ExecuteResult(ControllerContext context)
        {

            //Create a response stream to create and write the Excel file
            HttpContext curContext = HttpContext.Current;
            curContext.Response.Clear();
            curContext.Response.AddHeader("content-disposition", "attachment;filename=" + FileName);
            curContext.Response.Charset = "";
            curContext.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            curContext.Response.ContentType = "txt/csv";




            //Convert the rendering of the grid view to a string representation 
            StringWriter stringWriter = new StringWriter();
            HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter);

            Write(List, stringWriter);

            //Open a memory stream that you can use to write back to the response
            byte[] byteArray = Encoding.ASCII.GetBytes(stringWriter.ToString());

            MemoryStream memoryStream = new MemoryStream(byteArray);
            StreamReader streamReader = new StreamReader(memoryStream, Encoding.ASCII);

            //Write the stream back to the response
            curContext.Response.Write(streamReader.ReadToEnd());
            curContext.Response.End();

        }
    }