Deleting file after upload

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

Answer 2

dispose the fi before deleting. and then us File.Delete(). remember to use using statements when use disposable objects, or dispose it after use.

Answer 3

using System.io

 File.Delete(Server.MapPath("../Nurturing/" + fnevents));
            FileInfo fInfoEvent;
            fInfoEvent = new FileInfo(fnevents);
            fInfoEvent.Delete();

here fnevents is the name of the file that u are deleting. Nurturing is the name of the folder.