CsvHelper - read in multiple columns to a single list

Question

I\'m using CSVHelper to read in lots of data

I\'m wondering if it\'s possible to read the last n columns in and transpose them to a list

Answer 1

I don't know this library, so following might be helpful or not.

If you already have an IEnumerable> which represents all records with all columns you could use this Linq query to get your List with the IList Attributes:

IEnumerable> allRecords = .....;
IEnumerable allPersons = allRecords
.Select(rec => 
{
    var person = new Person();
    person.FirstName = rec.ElementAt(0);
    person.LastName = rec.ElementAtOrDefault(1);
    person.Attributes = rec.Skip(2).ToList();
    return person;
}).ToList();

Edit: Downloaded the library, following at least compiles, could not really test it:

IList allPersons = new List();
using (var reader = new CsvHelper.CsvReader(yourTextReader))
{
    while (reader.Read())
    {
        var person = new Person();
        person.FirstName = reader.CurrentRecord.ElementAt(0);
        person.LastName = reader.CurrentRecord.ElementAtOrDefault(1);
        person.Attributes = reader.CurrentRecord.Skip(2).ToList();
        allPersons.Add(person);
    }
}