title: add a line to SPFile object
body: <p>I simply want to add a line to an SPFile object, which is a simple txt file. </p>
  
  <p>Is there a simple way to do this ? I was thinking </p>
  
  <p>Thanks</p>
  
  <p>EDIT : that's what i have for the moment : </p>
  
  <pre><code>    public static void addLine(SPFile file, string line)
      {
          using(System.IO.StreamWriter strWriter = new System.IO.StreamWriter(file.OpenBinaryStream())){
              strWriter.WriteLine(line);
          }
  
      }
  </code></pre>
  
  <p>I don't have any error here, but the file doesn't get saved. I've tried to do something like : </p>
  
  <pre><code> file.SaveBinary( args )
  </code></pre>
  
  <p>But i don't know what to put in args. </p>
  
  <p>If you can help me. 
  Thanks</p>