Merging 2 Text Files in C#

Question

Firstly, i\'d just like to mention that I\'ve only started learning C# a few days ago so my knowledge of it is limited.

I\'m trying to create a program that will par

Answer 1

Using a FileInfo extension you could merge one or more files by doing the following:

public static class FileInfoExtensions
{
  public static void MergeFiles(this FileInfo fi, string strOutputPath , params string[] filesToMerge)
  {
    var fiLines = File.ReadAllLines(fi.FullName).ToList();
    fiLines.AddRange(filesToMerge.SelectMany(file => File.ReadAllLines(file)));
    File.WriteAllLines(strOutputPath, fiLines.ToArray());
  }
}

Usage

  FileInfo fi = new FileInfo("input");
  fi.MergeFiles("output", "File2", "File3");