Sorting csv file

Question

I have e csv file wich I need to sort. The file looks like:

 ID Name Surname Age Salary
 1  John Asben   33  1000
 2  Adam Smith   22  1200
 3  Amanda J     22  2000
         


        

Answer 1

Use Skip to remove the header line for sorting. Use Take + Concat to put the header and the sorted data together again.

string[] lines = File.ReadAllLines(path);
var data = lines.Skip(1);
var sorted = data.Select(line => new
             {
                SortKey = Int32.Parse(line.Split(',')[3]),
                Line = line
             })
            .OrderBy(x => x.SortKey)
            .Select(x => x.Line);
File.WriteAllLines(@"C:\Users\sorteddata.csv", lines.Take(1).Concat(sorted));