filesystemwatcher

File access error with FileSystemWatcher when multiple files are added to a directory

由 萝らか妹 提交于 2019-11-26 16:13:45
I am running into an issue with a FileSystemWatcher when multiple files are placed into the watched directory. I want to parse the file as soon as it is placed in the directory. Typically, the first file parses fine, but adding a second file to the directory causes an access issue. Occasionally, the first file doesn't even parse. There is only one application running and watching this directory. Eventually, this process will be running on multiple machines and they will be watching a shared directory but only one server can parse each file as the data is imported into a database and there are

Detecting moved files using FileSystemWatcher

由 好久不见. 提交于 2019-11-26 12:44:10
问题 I realise that FileSystemWatcher does not provide a Move event, instead it will generate a separate Delete and Create events for the same file. (The FilesystemWatcher is watching both the source and destination folders). However how do we differentiate between a true file move and some random creation of a file that happens to have the same name as a file that was recently deleted? Some sort of property of the FileSystemEventArgs class such as \"AssociatedDeleteFile\" that is assigned the

Find out username(who) modified file in C#

由 偶尔善良 提交于 2019-11-26 12:15:35
问题 I am using a FileSystemWatcher to monitor a folder. But when there is some event happening in the directory, I don\'t know how to search who made a impact on that file. I tried to use EventLog. It just couldn\'t work. Is there another way to do it? 回答1: I cant remember where I found this code but its an alternative to using pInvoke which I think is a bit overkill for this task. Use the FileSystemWatcher to watch the folder and when an event fires you can work out which user made the file

System.IO.FileSystemWatcher to monitor a network-server folder - Performance considerations

由 泄露秘密 提交于 2019-11-26 10:22:08
问题 I want to watch a folder tree on a network server for changes. The files all have a specific extension. There are about 200 folders in the tree and about 1200 files with the extension I am watching. I can\'t write a service to run on the server (off-limits!) so the solution has to be local to the client. Timeliness is not particularly important. I can live with a minute or more delay in notifications. I am watching for Create, Delete, Rename and Changes. Would using the .NET System.IO

FileSystemWatcher Fails to access network drive

由 妖精的绣舞 提交于 2019-11-26 07:48:50
问题 I am trying to run a file watcher over some server path using windows service. I am using my windows login credential to run the service, and am able to access this \"someServerPath\" from my login. But when I do that from the FileSystemWatcher it throws: The directory name \\someServerPath is invalid\" exception. var fileWatcher = new FileSystemWatcher(GetServerPath()) { NotifyFilter=(NotifyFilters.LastWrite|NotifyFilters.FileName), EnableRaisingEvents=true, IncludeSubdirectories=true };

File access error with FileSystemWatcher when multiple files are added to a directory

由 送分小仙女□ 提交于 2019-11-26 04:46:08
问题 I am running into an issue with a FileSystemWatcher when multiple files are placed into the watched directory. I want to parse the file as soon as it is placed in the directory. Typically, the first file parses fine, but adding a second file to the directory causes an access issue. Occasionally, the first file doesn\'t even parse. There is only one application running and watching this directory. Eventually, this process will be running on multiple machines and they will be watching a shared

Using FileSystemWatcher to monitor a directory

由 孤人 提交于 2019-11-26 02:28:53
问题 I am using a Windows Forms Application to monitor a directory and move the files dropped in it to another directory. At the moment it will copy the file to another directory, but when another file is added it will just end with no error message. Sometimes it does copy two files before ending on the third. Is this because I am using a Windows Form Application rather than a console app? Is there a way I can stop the program from ending and to keep watching the directory? private void watch() {

Notification when a file changes?

由 放肆的年华 提交于 2019-11-26 00:42:18
问题 Is there some mechanism by which I can be notified (in C#) when a file is modified on the disc? 回答1: That would be System.IO.FileSystemWatcher. 回答2: You can use the FileSystemWatcher class. public void CreateFileWatcher(string path) { // Create a new FileSystemWatcher and set its properties. FileSystemWatcher watcher = new FileSystemWatcher(); watcher.Path = path; /* Watch for changes in LastAccess and LastWrite times, and the renaming of files or directories. */ watcher.NotifyFilter =

FileSystemWatcher Changed event is raised twice

由 萝らか妹 提交于 2019-11-25 23:16:03
问题 I have an application where I am looking for a text file and if there are any changes made to the file I am using the OnChanged eventhandler to handle the event. I am using the NotifyFilters.LastWriteTime but still the event is getting fired twice. Here is the code. public void Initialize() { FileSystemWatcher _fileWatcher = new FileSystemWatcher(); _fileWatcher.Path = \"C:\\\\Folder\"; _fileWatcher.NotifyFilter = NotifyFilters.LastWrite; _fileWatcher.Filter = \"Version.txt\"; _fileWatcher

FileSystemWatcher vs polling to watch for file changes

由 谁都会走 提交于 2019-11-25 23:06:10
问题 I need to setup an application that watches for files being created in a directory, both locally or on a network drive. Would the FileSystemWatcher or polling on a timer would be the best option. I have used both methods in the past, but not extensively. What issues (performance, reliability etc.) are there with either method? 回答1: I have seen the file system watcher fail in production and test environments. I now consider it a convenience, but I do not consider it reliable. My pattern has
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