C# is file locked
WebJul 11, 2013 · 8 Answers. Somewhere along the way a connection is getting left open. Get rid of OpenConnection and CloseConnection and change ExecuteNonQuery to this: using (SQLiteConnection c = new SQLiteConnection (ConnectionString)) { c.Open (); using (SQLiteCommand cmd = new SQLiteCommand (sql, c)) { cmd.ExecuteNonQuery (); } } WebMay 12, 2015 · There is no need first to check if the file is locked and then access it, as between the check and the access some other process may still get a lock on the file. So, what you do is correct, if you succeed, do your work with the file. Share Improve this answer Follow answered Jan 8, 2009 at 16:08 Sunny Milenov 21.8k 6 79 106
C# is file locked
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WebJun 13, 2010 · 1 Answer. Try to either recycle the AppPool which your webservices runs under, or use iisreset. iisreset /stop will stop IIS and release the dll's. iisreset /start will start IIS back up again. If you recycle the Application Pool, then the lock of dll's will be released until someone hits your webservice again, and aquires a new lock. WebJun 7, 2024 · In normal C# development, we use the lock keyword to implement a read/write barrier to variables and methods, so: C#. ... The canonical way to do this would be to read the file with a shared-read lock, close the file, do whatever is next, and when it came time to write the file, *then* use an exclusive-write lock. The most common (and …
WebJun 25, 2009 · To prevent a file from being written to (to "lock" it) you must open it with FileShare.Read (which will still allow others to read it) or FileShare.None (which will not allow others to read or write it). The file will only be locked as long as you have it open. Once you close the file it is no longer locked. WebIf you don't know which process has the file locked, you'll need to examine each process's handle list, and query each handle to determine if it identifies the locked file. Doing this in C# will likely require P/Invoke or an intermediary C++/CLI to call the native APIs you'll need. Once you've figured out which process(es) have the file locked ...
WebMay 23, 2024 · I am opening an excel file, refreshing it's data sources, and saving it to PDF with a c# app. I based it on code samples like this.However, the file remains locked even after the calls to final release. WebJun 25, 2009 · In a more complex application, when the routine with the File.Copy () exits (but the application is still running), the lock persists. Only when the entire application is finished is the lock released. Changing sourceFile to use a mapped drive instead of a UNC path makes no difference to the behaviour.
WebMar 8, 2015 · Några exempel på Dekkers algoritm i c# med Semaphore, Monitor och Lock - GitHub - robinos/DekkersAlgorithm: Några exempel på Dekkers algoritm i c# med Semaphore, Monitor och Lock
how can uncle iroh see the spirit worldWebstring fileName = @"c:\aaa.doc";//Path to locked file Process tool = new Process (); tool.StartInfo.FileName = "handle.exe"; tool.StartInfo.Arguments = fileName+" /accepteula"; tool.StartInfo.UseShellExecute = false; tool.StartInfo.RedirectStandardOutput = true; tool.Start (); tool.WaitForExit (); string outputTool = tool.StandardOutput.ReadToEnd … how many people live in kalgoorlieWebMar 14, 2024 · The lock statement acquires the mutual-exclusion lock for a given object, executes a statement block, and then releases the lock. While a lock is held, the thread that holds the lock can again acquire and release the lock. ... C# language specification. For more information, see The lock statement section of the C# language specification. See ... how many people live in kabulWebC# : What's the least invasive way to read a locked file in C# (perhaps in unsafe mode)?To Access My Live Chat Page, On Google, Search for "hows tech develop... how can undernutrition affect your healthWebAug 24, 2011 · The documentation does not say anything about the locking behavior of ReadLines. Thus, even if it should turn out that the implementation of the .net Framework you use does not lock the file, it's not something that you can rely on when developing your application. – Heinzi Mar 17, 2011 at 11:40 Add a comment 2 Answers Sorted by: 50 No... how can uniforms be distractingWebFeb 23, 2016 · SSIS C# Script Task – Check file is locked, wait until file is unlocked. /// Blocks until the file is not locked any more. // Attempt to open the file exclusively. throw new Exception("Max wait time reached for file : " + fullPath + ". Waited for " + maxWaitInSec + " seconds but lock not released"); how many people live in japan liveWebYou can lock the file by having a stream open while the application A runs. You need a NonClosingStreamWrapper to avoid disposing the stream when you dispose your StreamWriter (this happens automatically with using) NonClosingStreamWrapper by Jon Skeet can be found from here Example When application starts use this to lock the file how can understanding memory aid in learning