Question

I am reading a csv file which has following data format

14-Sep-12   ALUMINI 31-Dec-12   117.65  119.25  117.65  118.9   116.75  36
14-Sep-12   ALUMINI 30-Nov-12   116.95  118.65  116.8   118.4   116.5   252
14-Sep-12   ALUMINI 31-Oct-12   116.45  118.15  116.05  117.85  116.05  2802

I am reading this data with following code

List<string> sc = new List<string>();
filepath = "abc.csv" ;

FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.ReadWrite);
StreamReader sr = new StreamReader(fs);

if (fs != null)
{
  while ((oneLine = sr.ReadLine()) != null)
  {
     sc.Add(oneLine);
  }

  sr.Close();

  // Now writing above data in  some file , fo and fout are already declared 
  fo = new FileStream("tempd.txt", FileMode.Append, FileAccess.Write);
  fout = new StreamWriter(fo);

  foreach (string str in sc)
  {
    // i am using ' ' as one of my splitter character
    char[] splitter = { ' ', ',', '\t' };
    string[] sa1 = str.Split(splitter);

    string wline = sa1[0] + "," + sa1[1] + "," + sa1[5] + "," + sa1[6] + "," + sa1[7] ;
    fout.WriteLine(wline);
  }
  fout.Close();
}

My biggest problem is first column of of data is 14-Sep-2012 has been changed to 14 Sep 2012 (- is missing). Which is creating problem in my rest of application.

Is there any way by which I can convert date format while reading and writing file, I want to store this date 14-Sep-2012 as 2012-9-14.

Answer 1

I think this is the answer you are looking for.

DateTime d = Convert.ToDateTime(sa1[0]);

string wline = d.ToString("yyyy-MM-dd") + "," + sa1[1] + "," + sa1[5] + "," + sa1[6] + "," + sa1[7];