c# - FileSystemWatcher OnChanged event not updating the web page UI -

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onchanged event not updating web page ui.

program control flows onchanged event , updates values of ui components not getting reflected on webpage.

public void filewatcher()         {             filesystemwatcher watcher = new filesystemwatcher();             watcher.path = xmldirectory;             watcher.notifyfilter = notifyfilters.lastwrite;             watcher.filter = "*.xml";             watcher.changed += new filesystemeventhandler(onchanged);             watcher.enableraisingevents = true;         } private void onchanged(object source, filesystemeventargs e)         {             txtstatus.text ="changed";             btncheck.enabled = false;         }


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