Zip files

[DinoRondelly]

I am generating a zip file and then emailing it. I am using a temp directory to create this file but i will always be creating a number of different files using this directory. The problem i am having is when i go to delete the files inside my temp directory i get an error saying that the zip file is being used by another process. I have stepped through the code and waited until the email was sent to be sure that its not being locked there. I have also set the zipfile to null and that still didnt work. if anyone has any ideas as to what might be causing this i would be forever grateful.

                    if (!CreatedTempFolder)
                    {
                        //if not dir exists
                        if (!System.IO.Directory.Exists(TempFileLocation))
                            // create it
                            System.IO.Directory.CreateDirectory(TempFileLocation);
                        else
                        {
                            //delete all files from temp foleder
                                System.IO.Directory.Delete(TempFileLocation, true);
                                System.IO.Directory.CreateDirectory(TempFileLocation);
                        }
                        //set CreatedTempFolder to true


                string zipFileName = string.Format("{0}\\\\{1}.zip", TempFileLocation, DrSched\["GROUPNAME"\].ToString());
                MyZip zipfile = new MyZip(zipFileName,"W");
                

                foreach (string fileName in System.IO.Directory.GetFiles(TempFileLocation,"\*.csv"))
                    zipfile.AddFile(fileName);

                //zipfile.Save();
                zipfile.Close();

                zipfile = null;
                GC.Collect();

[J4amieC]

If MyZip implements IDisposable (which Im willing to bet it does!) then you need to call Dispose() on it. Setting it to null does nothing to solve the problem you're experiencing.

[The Man from U N C L E]

You haven't stated what zipFile is (build in .Net functionality? sharpZipLib? Other third party?) however I suspect the problem is you need to call Dispose as well as Close, so that it releases unmanaged resources, in this case the underlying file.

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[DinoRondelly]

Thanks for your help i have found a work around from this i am still not 100% sure exactly what MyZip(its company specific). Thanks for all your help !!! Dino

[Lost User]

If you are targeting .NET 3.5 or even 4.0 there is a namespace called System.IO.Packaging , which contains some classes that allow working with zip files. :)

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