[Vir] .NET/C# večnitna rešitev datotek samo za branje

Neobdelana izjema: System.AggregateException: Prišlo je do ene ali več napak. ---> System.IO.IOException: Datoteko "C:\SyncTemp\Position\Taxi\2017\09\09\Time\0000.dat" uporablja drug proces, zato do te datoteke ni dostopa.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   V System.IO.FileStream.Init(Pot nizov, način FileMode, dostop do datotek, pravice Int32, Boolean useRights, FileShare share, Int32 bufferSize, možnosti FileOptions, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
   V System.IO.FileStream: ctor(pot do nizov, način FileMode, dostop do datotek, deljenje datotek)
   V System.IO.File.Open(pot do nizov, način FileMode, dostop do datotek)
   At ConsoleApp1.FileReadHelper.SingleFile(String path) lokacija C:\project\my\TestNet\ConsoleApp1\FileReadHelper.cs: vrstica številka 27
   V ConsoleApp1.FileReadHelper.<>c__DisplayClass3_0. <MultipleFilesAsync>b__0(String x) Pozicija C:\project\my\TestNet\ConsoleApp1\FileReadHelper.cs: Vrstica številka 68
   V System.Threading.Tasks.Parallel.<>c__DisplayClass17_0'1. <ForWorker>b__1()
   In System.Threading.Tasks.Task.InnerInvokeWithArg(Child Task)
   V System.Threading.Tasks.Task.<>c__DisplayClass176_0. <ExecuteSelfReplicating>b__0(Predmet)
   --- Konec notranjega sledenja sklada izjem ---
   V System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   V System.Threading.Tasks.Task.Wait(Int32 milisekundTimeout, CancellationToken cancellationToken)
   In System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action'1 body, Action'2 bodyWithState, Func'4 bodyWithLocal, Func'1 localInit, Action'1 localFinally)
   V System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable'1 izvor, ParallelOptions, Action'1 body, Action'2 bodyWithState, Action'3 bodyWithStateAndIndex, Func'4 bodyWithStateAndLocal, Func'5 bodyWithEverything, Func'1 localInit, Action'1 localTFinally)
   at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable'1 source, Action'1 body)
   In ConsoleApp1.FileReadHelper.MultipleFilesAsync(IEnumerable'1 path) na lokaciji C:\project\my\TestNet\ConsoleApp1\FileReadHelper.cs: vrstica številka 66
   At ConsoleApp1.Program.Main(String[] args) pozicija C:\project\my\TestNet\ConsoleApp1\Program.cs: vrstica številka 73
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