using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            //other streamreader code
            string strTemp = String.Empty;
            string[] splitsByLine = new string[] { "1, 2, 3, 4", 
                                                   ",,,", 
                                                   "x,y,z",
                                                    "" };

            if (splitsByLine != null && splitsByLine.Any())
            {
                foreach (string s in splitsByLine)
                {
                    strTemp = s.Replace(",", "");

                    if (!String.IsNullOrEmpty(strTemp))
                    {
                        var nameAndSize = s.Split(',');

                        if (nameAndSize != null && nameAndSize.Any() && nameAndSize.Count() > 1)
                        {
                            Console.WriteLine(String.Concat(nameAndSize[0]));
                        }
                    }
                }
            }
        }
    }
}