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Write a string to a file

Posted on 2004-08-18
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Last Modified: 2010-04-15
Hello,
I have strings of different length to be written to a flat file. The block to be written to file (containing single string) must contain 255 characters. (in order to write in a kind of a structure to a file). Is there a function to write such blocks WITHOUT having to "fill up" every string to 255-character size? If not, what could be the fastest solution?
Thx in advance!
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Question by:zaratin
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2 Comments
 
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Accepted Solution

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eternal_21 earned 500 total points
ID: 11834348
Assuming you are saving using a FileStream, the following method would work (truncates strings longer than 255 characters):

  static void WriteString(System.IO.FileStream fileStream, string outString)
  {
    byte[] textBytes = System.Text.ASCIIEncoding.ASCII.GetBytes(outString);
    byte[] bytes = new byte[(textBytes.Length > 255 ? (int)textBytes.Length : 255)];
    textBytes.CopyTo(bytes, 0);
    fileStream.Write(bytes, 0, 255);
  }

(throws exception if string is longer than 255 characters)

  static void WriteString(System.IO.FileStream fileStream, string outString)
  {
    byte[] bytes = new byte[255];
    System.Text.ASCIIEncoding.ASCII.GetBytes(outString).CopyTo(bytes, 0);
    fileStream.Write(bytes, 0, 255);
  }
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Author Comment

by:zaratin
ID: 11853782
Thx, eternal_21. Very nice solution...
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