Sort comma separated values from file.

Question

How to sort comma separated values in file comparing only first element in each row.

Answer 1

Something like:

var result = File.ReadAllLines(pathToFile).OrderBy(line => line.Split(",")[0])

Just note that this assumes your input is always valid. You would have to add your own error checking (empty rows, empty files, etc)

Answer 2

• Read the file line by line
• Split the lines at the commas
• Sort
• Write back to file