title: Using System.IO.StreamWriter to write another line
body: <p>I need to update the students score with a new score but I cant get it to write to the line that the students current score it at. It just deletes the whole text.</p>
  
  <p>Alex,letmein,0
  David,qwerty1,0
  John,password,0
  Paul,lion,0
  Luke,bennett,0
  Ronald,Mcdonald,0
  Erin,german,0
  Laura,Scotland,0
  Ross,extra,0
  Alan,beverage,0</p>
  
  <pre><code>Try
   fileName = "C:\Documents and Settings\Student\Desktop\Task10\primary4.txt"
   Dim sWriter As New System.IO.StreamWriter(fileName) 
             index = lblPosition.Text
              sWriter.Write(username(index))
              sWriter.Write(",")
              sWriter.Write(password(index))
              sWriter.Write(",")
              sWriter.WriteLine(updatescore(position)
              sWriter.Close()
              MessageBox.Show("Writing file to disk")
              Me.Close()
       Catch ex As Exception
       MessageBox.Show(ex.Message)
  End Try
  </code></pre>