Question

I am using a text file to have some data there for later purposes. So what I do is to check if file exists, if not I am creating a new file when I need. This gives me error saying that my file is still being used by a different process, but I’m not sure why that is.

This is how I do it. Here, I am checking if file exists which starts when program runs:

    private void CreateLastOpenFile()
    {
        if (!Directory.Exists(directory))
        {
            Directory.CreateDirectory(directory);
        }

        if (!File.Exists(file))
        {
            File.Create(file);
        }
    }

Now, I am adding some data to it while checking or creating a new file (I am having this in 2 places in my program):

CreateLastOpenFile();
File.WriteAllText(file, data);

What could be wrong here? I have read some examples from the Net, but didn’t see anything about closing any files.

Answer 1

Try this. This will close the opened stream during file creation

 if (!File.Exists(file))
        {
         FileStream str = File.Create(file);
         str.Close();
        }