C# File AppendAllLines(String, IEnumerable, Encoding)
Description
Appends lines to a file by using a specified encoding, and then closes the file. If the specified file does not exist, this method creates a file, writes the specified lines to the file, and then closes the file.
Syntax
public static void AppendAllLines(
string path,//ww w . j a va2 s . c om
IEnumerable<string> contents,
Encoding encoding
)
Parameters
path- The file to append the lines to. The file is created if it doesn't already exist.contents- The lines to append to the file.encoding- The character encoding to use.
Example
using System;//from w w w .ja v a 2 s . c o m
using System.IO;
using System.Linq;
using System.Text;
class Program
{
static string dataPath = @"c:\temp\timestamps.txt";
static void Main(string[] args)
{
var da = from line in File.ReadLines(dataPath)
where (line.StartsWith("a"))
select line;
File.WriteAllLines(@"C:\temp\selectedDays.txt", da);
File.AppendAllLines(@"C:\temp\selectedDays.txt", da,Encoding.UTF8);
}
}