The Restart Manager uses the list of resources registered with the session toĭetermine which applications and services must be shut down and restarted. It works by connecting to the "Restart Manager Session". What are the applications are using a particular file by enumerating RmRegisterRescources function, RmGetList function is invoked to check Registering the resources to a Restart Manager session via Result a new instance of Win32Exception object is created. Used to create a restart manager session and according to the return RmStartSession function which is included in rstrtmgr.dll has been NET Framework 4.0 would help inįinding out which is the process that is having a lock on a file.
#Checkbook pro oi file manager full
Return true // This file has been lockedĪside from working 3-liners and just for reference: If you want the full blown information - there is a little project on Microsoft Dev Center: Return true // This file has been locked, we can't even open it to read This is because the file is Read-Only and we tried to open in ReadWrite mode, now try to open in Read only modeįs = File.Open(FileName, FileMode.Open, FileAccess.Read, FileShare.None)
NOTE: This doesn't handle situations where file is opened for writing by another process but put into write shared mode, it will not throw an exception and won't show it as write lockedįs = File.Open(FileName, FileMode.Open, FileAccess.ReadWrite, FileShare.None) // If we can't open file for reading and writing then it's locked by another process for writingĬatch (UnauthorizedAccessException) // (v=vs.110).aspx Keeping the above in mind, this checks if the file is either locked for writing or locked to prevent reading: public static bool FileLocked(string FileName)
#Checkbook pro oi file manager code
Try it out yourself: byte output1 = output2 = output3 = accepted answers above suffer an issue where if file has been opened for writing with a FileShare.Read mode or if the file has a Read-Only attribute the code will not work. Public static string ReadFileTextNoEncoding(string filePath)Ĭhar chars = new char Depending on the encoding you wish to use - I'll leave that up to youįileContents = .GetString(buffer) While ((count = fileStream.Read(buffer, sum, length - sum)) > 0)įileStream.Close() //Again - this is not needed, just me being paranoid and explicitly releasing resources ASAP read until Read method returns 0 (end of the stream has been reached) Int sum = 0 // total number of bytes read
Int length = (int)fileStream.Length // get file lengthīuffer = new byte // create buffer Using (FileStream fileStream = File.Open(filePath, FileMode.Open, FileAccess.ReadWrite, FileShare.None)) Public static string ReadFileTextWithEncoding(string filePath) THE FUNKY MAGIC - TO SEE IF THIS FILE REALLY IS LOCKED!!! Sum += count // sum is a buffer offset for next readingįileStream.Close() //This is not needed, just me being paranoid and explicitly releasing resources ASAP Int errorCode = Marshal.GetHRForException(exception) & ((1 0) Private static bool IsFileLocked(Exception exception) Use this to check if a file is locked: using System.IO
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