If your file processing takes too long and there is a lot of activity on the file system you could end up losing FileWatcher notifications if it's internal buffer fills up while you're processing files. Use session variables or server varaibles and pass values to the batch file. At this point in the code you're not on the UI thread anyway so it should be free and processing events anyway.ĭepending on the quantity and types of changes you're expecting, you may want to consider moving the actual processing of the file onto your own background thread using something like the BackgroundWorker class. Also written in Go, and built with performance in mind, KrakenD is a high. Also the call to Application.DoEvents() in the callback handler isn't necessary. Just do the same thing with the Visible property that you've done with the Text property and you'll be fine. The FileWatcher fires its events on background threads and so you won't be able to twiddle UI element properties in your callback handler. Public Sub New () FileWatcher New FileSystemWatcher () AddHandler FileWatcher.Created, AddressOf OnFileAdded With FileWatcher. This will be changed later within class properties. Is there a particular problem that you are encountering? From looking at the code the only thing I can see that you should change is the manipulation of the Visible property on the labels. The default settings are EnabledRaisingEvents False, Path is an empty string and filter is all files. SetStatus d = new SetStatus (SetStatusMessage) Private void SetStatusMessage( Label tmpLbl, string text) Using ( StreamReader _sr = new StreamReader (filePath)) Private void WaitForFile( string filePath) Format( "File Caught: ", e.FullPath, e.Name) SetStatusMessage(label1, "File was Created" ) Void _fw_Changed( object sender, FileSystemEventArgs e) _wrkThread = new ThreadStart ( new SetStatus (SetStatusMessage)) _fw.Renamed += new RenamedEventHandler (_fw_Changed) _fw.Created += new FileSystemEventHandler (_fw_Changed) _fw.Deleted += new FileSystemEventHandler (_fw_Changed) _fw.Changed += new FileSystemEventHandler (_fw_Changed) Here is what I have so farįileSystemWatcher _fw = new FileSystemWatcher () ĭelegate void SetStatus ( Label tmpLbl, string text) NET version 1, but i have since lost the code that I wrote. I have started some of the code, and I used to have something that did this back in. and call the WaitForChanged method with a Renamed specified for its parameter. What I want is a thread to do the processing of the file and send back status messages to the windows form or system tray application that is created. Installation Getting Started Run Cycle Overview Detects Multiple Calls to done() Assertions Asynchronous Code Synchronous Code Arrow Functions Hooks. The following example creates a FileSystemWatcher to watch the directory. For example, you can use a template to populate the subject field for an email action with data stored in the watch payload. I am trying to use it to monitor a directory and get the list of files that are created and deleted from the directory. I need some help with the filewatcher class.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |