How to Split text file into multiple text files?

How to Split text file into multiple text files?

• AronW

  But what size should each file be Whatever that size is, set the maxFileSize to that, and run my code, and it will automatically split the file for you into the directory specified in destFileLocation.

  
  
  

• hanjg82

  It would have been useful to know that you needed intact lines upfront.

  Well, basically you'd rewrite it to use StreamReader and ReadLine, then for each line you'd have to decide if the line would take your file beyond it's max size, and if it didn't write it to the file, and if it did, start a new file.

  
  
  

• SP534

  Thankq Got

  But I'm reading lines from the text file

  This method , splitting the line and place the truncated one in other file

  
  
  

• Nick Sheng

  Some more information about your requirements would help. What exactly do you mean when you say "based on size of the File" If you wanted each file to be a maximum of a certain size you could do something like:

  string sourceFileName = @"C:\VS2005 SP1.exe";

  string destFileLocation = @"C:\";

  int index = 0;

  long maxFileSize = 52428800;

  byte[] buffer = new byte[65536];

  using (Stream source = File.OpenRead(sourceFileName))

  {

  while (source.Position < source.Length)

  {

  index++;

  // Create a new sub File, and read into t

  string newFileName = Path.Combine(destFileLocation, Path.GetFileNameWithoutExtension(sourceFileName));

  newFileName += index.ToString() + Path.GetExtension(sourceFileName);

  using (Stream destination = File.OpenWrite(newFileName))

  {

  while (destination.Position < maxFileSize)

  {

  // Work out how many bytes to read

  int bytes = source.Read(buffer, 0, (int) Math.Min(maxFileSize, buffer.Length));

  destination.Write(buffer, 0, bytes);

  // Are we at the end of the file

  if (bytes < Math.Min(maxFileSize, buffer.Length))

  {

  break;

  }

  }

  }

  }

  }

  
  
  

• Karl Erickson

  Thank u , I'll try that.
  
  

• tdtdtd

  Thanks for the reply Sean Hederman

  Suppose if I've text(.txt) file more than 500KB , I want to split it into muliple files.

  Ex :

  temp.txt is file with 1209KB size

  Now the result should be

  temp1.txt

  temp2.txt

  temp3.txt

  
  
  

• swathi_challa

  can u tell the maxSize field here, what it is,

  I want to split at 500KB each file.

  If the main file exceeds 500KB then I want to split it.

  
  
  

• Rahul Garg

  Well, 500KB is 500x1024 bytes which means the maximum file size should be 512000.

  
  
  
• How to Split text file into multiple text files?