c# split large file into chunks
public static void SplitFile(string inputFile, int chunkSize, string path)
{
const int BUFFER_SIZE = 20 * 1024;
byte[] buffer = new byte[BUFFER_SIZE];
using (Stream input = File.OpenRead(inputFile))
{
int index = 0;
while (input.Position < input.Length)
{
using (Stream output = File.Create(path + "\\" + index))
{
int remaining = chunkSize, bytesRead;
while (remaining > 0 && (bytesRead = input.Read(buffer, 0,
Math.Min(remaining, BUFFER_SIZE))) > 0)
{
output.Write(buffer, 0, bytesRead);
remaining -= bytesRead;
}
}
index++;
Thread.Sleep(500); // experimental; perhaps try it
}
}
}