events in a file system watcher
<p>when i use a  file system watcher changed event  for a notepad it occurs once,but the event occurs twice for a word pad,please give me the reason.i launch using explorer</p>

<p>A bit Briefly,
                I have a file named "xxx.log" it contains some strings,i wrote a filesystemwatcher which will watch this file for size(notifyfilter - size) changed.whenever
i opened the file with notepad the changedevent occurs once,whenevr i do it with wordpad
the event occurs twice what is the reason. i open files using explorer.exe.</p>

<p>how to handle this problem.i need the event once only,is there any way</p>
