Reading only specific columns from a CSV file out of many

Question

I have a CSV file which looks like this basically:

TransactionID         ProfileID       Date           // more columns here...
somevalue             1231231         


        

Answer 1

The header is still to skip in this code, but with this code, you can choose which columns to extract. It might be much faster if you use a StreamReader. And you will need a constructor for your object.

var temp = File.ReadAllLines(@"C:\myFile.csv");
public List() myExtraction = new List();
foreach(string line in temp)
{
  var delimitedLine = line.Split('\t'); //set ur separator, in this case tab

  myExtraction.Add(new MyMappedCSVFile(delimitedLine[0], delimitedLine[3]));
}

Code for your Object:

public class MyMappedCSVFile
{
  public string ProfileID { get; set; } 
  public string Date { get; set; }

  public MyMappedCSVFile(string profile, string date)
  {
    ProfileID = profile;
    Date = date;
  }
}