title: Appendtext not working
body: <p>So I'm trying to make a program that calculates and saves your BMI into a file.
  I tried using <code>appendtext</code> like this.</p>
  
  <pre><code>StreamWriter logboekBMI = new StreamWriter(path + "Logbmi.txt");
  logboekBSA.Close();
  
  logboekBMI = File.AppendText(path + "Logbmi.txt");
  logboekBMI.WriteLine("BMI: " + bmi.getBMI());
  logboekBMI.Close();
  </code></pre>
  
  <p>And I read the file to a text box like this: </p>
  
  <pre><code>StreamReader logbmi = new StreamReader(path + "Logbmi.txt");
  txtLogboek.Text = logbmi.ReadToEnd();
  </code></pre>
  
  <p>It deletes the line that was already in the file and inserts the new one. It never appends.</p>