C# wait for file to be available
WebAug 17, 2024 · As files are created, the marker file is touched, updating it's change time. Your local system would then be free to copy all files older than the end-marker file. You could use signaling of some other form from the remote system to the local system to prompt the local system to come and get a completed file. Share Improve this answer … WebMay 18, 2009 · protected virtual bool IsFileLocked (FileInfo file) { try { using (FileStream stream = file.Open (FileMode.Open, FileAccess.Read, FileShare.None)) { stream.Close (); } } catch (IOException) { //the file is unavailable because it is: //still being written to //or being processed by another thread //or does not exist (has already been processed) …
C# wait for file to be available
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WebSep 25, 2010 · The process cannot access the file 'C:\\sharpspool\\input.jt' because it is being used by another process. Is it possible to raise the fileSystemWatcher event only … Webfor reference I have looked at Is there a way to check if a file is in use? and How to wait until File.Exists? but I want to avoid using SystemWatcher as it seems kind of overdoing. My application is calling cmd prompt to create a file and as there is no ways for my application to know when it is finished I was thinking of using Sleep() as long as the file does not exist.
WebFeb 7, 2011 · Just to be clear, there is no "completion event". The FSW tells you when a file is CREATED, not when a copy operation is going on. A file copy operation is just an application (Explorer) opening one file for read and another file for write. Read the bytes from one file and write them to another. The FSW cannot tell what is going on with the files. WebOct 21, 2011 · Not much different in ASP.NET vs any other platform. You can go about it like this: Make AJAX call when the triggering link is clicked. Server-side code that handles the call launches an external process to generate the file, and waits for it to complete. After checking that the file is indeed there, reply to the AJAX call with a meaningful ...
WebApr 10, 2013 · public void SomeWhereInYourWebServerApplication { FileSystemWatcher fsw = new FileSystemWatcher ("tempfolder"); fsw.Created += fsw_Created; // save new entries to tempfolder } void fsw_Created (object sender, FileSystemEventArgs e) { foreach (string file in Directory.GetFiles ("tempfolder")) { try { string fileText = File.ReadAllText … WebIn your on_modified event, just wait until the file is finished being copied, via watching the filesize. Offering a Simpler Loop: historicalSize = -1 while (historicalSize != os.path.getsize (filename)): historicalSize = os.path.getsize (filename) time.sleep (1) print "file copy has now finished" Share Improve this answer Follow
WebJul 13, 2012 · Call to await GetFileAsync () never returns and app hangs in WinRT app. I'm attempting to load and read a settings file on application launch, and about 90% of the time, the await GetFileAsync ("filename.xml"); never returns, thus, hanging the application. About a quarter of the time, if I step through the code, it'll actually return and read ...
WebSep 6, 2024 · try to find the file store the output into an array variable (set, not append) do until the length of the variable is not greater than 0 try to find the file again store the output into the array variable plus some 'Delay' in the 'Do until' to check for the file on some regular basis, e.g. delay 30 minutes or 1hour, that's up to you. top 100 state farm agentsWebNov 16, 2005 · the file is busy while its constructor is attempting to open it. I would prefer to simply make some form of call that will test if the file is locked/busy, and if so wait until it is unlocked or a maximum time period has elapsed. All of the solutions I've found thus far use a poll loop, retrying the FileStream constructor, or File.Open method. I piano practice chart templateWebFeb 13, 2024 · Asynchronous operations often don't need to use a thread during the wait. They use the existing I/O completion thread briefly at the end. The latency of a file … top 100 startups in bangaloreWebApr 28, 2024 · It’s pretty easy to check read-only file flag using attributes: 1 var isReadonly = new System.IO.FileInfo(@"C:\file.txt").Attributes.HasFlag(System.IO.FileAttributes.ReadOnly); Check if file is readable or writeable Wheter a file can be read or not depends on … top 100 starting pitchers 2023WebOct 7, 2024 · User-1877113880 posted. Morning/Evening. I have an application that writes two texts files to a directory which then from another system get picked up and reads them and prints a label, when its finished doing what its doing it then removes the two txt files and places a result.txt file i then read the result file and add the results to a SQL table which … piano practice chart pdf freeWebFeb 21, 2024 · C# wait is called that as it waits for the task to finish its execution. Beginners will learn about Wait (TimeSpan), Wait (CancellationToken), Wait (Int32), Wait (Int32, CancellationToken), and Wait for overloads in this tutorial. All of these overloads with parameters, return types, and exceptions will be covered in this tutorial. piano practice for beginnersWebc# Sleep using System.Threading; static void Main () { //do stuff Thread.Sleep (5000) //will sleep for 5 sec } how to wait in c# System.Threading.Thread.Sleep (Milliseconds); c# wait seconds //wait 2 seconds Thread.Sleep (2000); Task.Delay (2000); //Both are valid options but Task.Delay () can be used with the async keyword c# wait seconds top 100 station playlist