title: How to truncate a file in c#?
body: <p>I am writing actions done by the program in C# into a file by using Trace.Writeln() function. But the file is becoming too large. How to truncate this file when it grows to 1MB? </p>
  
  <pre><code>TextWriterTraceListener traceListener = new TextWriterTraceListener(File.AppendText("audit.txt"));
  Trace.Listeners.Add(traceListener);
  Trace.AutoFlush = true;
  </code></pre>
  
  <p>What should be added to the above block</p>