Question

I am developing a c# application, backend as sqlite.In my application i have an option for clean databse.It means the curren .db file will delete using File.Delete method and again it create empty databse using File.create method.Now let me explain the problem.

To perform cleandatabse task, i have to stop all the process which is running ,after doing that if i click on clean database it is throwing an error that file cannot delete, it is being used by another process.i am able to stop all the thread which is running.

Somehow i am able to find which process is blocikng the file ,

foreach (var process in Process.GetProcesses()) {
                var files = GetFilesLockedBy(process);
                if (files.Contains(filePath))
                {
                    procs.Add(process);
                    Console.WriteLine(process.ProcessName);
                    process.Kill();
                    File.Delete(filePath);
                }
            }

But in the above code i used process.Kill, which close the window form which i am running.
without using kill, i tried close and dispose which doesn’t work for me.

Can you please help me to release the file from the process without closing the application and then yo delete the db file.

Thank you in advance

Best regards

Sangita.

Answer 1

You should make sure you close every stream you open it:

using (Stream str = File.Create("C:\\h.txt"))
{
// your code here
} // the stream will be automatically closed here

if you don’t put this using statement, it will cause you a lot of bugs, even if you close it manually str.Close();