Question

I am trying to upload a file with the FileUpload control. When file is uploaded, I extract information from it and then i want to delete it.

I manage to upload it, save it and get the info from it, but when i try to delete it i get the follwing exception
“The process cannot access the file ‘D:\IIS**OMITTED***\V75 personal ny.csv’ because it is being used by another process.

 string fn = Path.GetFileName(fu.PostedFile.FileName);
        string SaveLocation = Server.MapPath("UploadedCSVFiles") + "\\" + fn;
        FileInfo fi = new FileInfo(SaveLocation);

            fu.PostedFile.SaveAs(SaveLocation);
            fu.PostedFile.InputStream.Dispose();
            DataTable dt = AMethodThatUsesFile(SaveLocation);
            fi.Delete();

Answer 1

Try this code to delete file.

            System.IO.File.Delete(SaveLocation );

You specified a method AMethodThatUsesFile(SaveLocation);. If it uses any classes like StreamReader to read file, please close the reader using StreamReader.Close(); method before trying to delete