System.IO.File::Move fails, The process cannot access the file because it is being used by another process

Question

I'm getting the error "System.IO.IOException: The process cannot access the file because it is being used by another process" while trying to move a file i just created myself in the code, while running the code as batch. I have no problems running it as a client. I have tried Googelling and some of the suggestions are incl. below but uncommentted since it did not work. (filenameOutTemp is the one i can't access)

    ...
    asciiIoOut   = new AsciiIo(filenameOutTemp, #io_append);
    asciiIoOut.outFieldDelimiter(#fieldDelimiter);      

    if (createFile)
        {
            // Replace the vend account from DDD with local:
            record = conpoke(record, colVendDDD, vendSetupDDD.VendAccount);
            asciiIoOut.writeExp(record);
        }
    }

    //CodeAccessPermission::revertAssert();
    asciiIoOut.finalize();
    asciiIoOut = null;


    //Move from temp folder to vender item folder:
    fshVendTable = RetailVendTable::find(vendSetupDDD.VendAccount);
    filenameOut  = fshVendTable.filePathImport(VendorFileImportPath::Items);
    filenameOut += #filePathSeperator + substr(inventImportFiles.Filename,1, strLen(inventImportFiles.Filename) - 4 );
    filenameOut += #spacer + #item + #spacer + filenameDate + #spacer + filenameTime + #csv;

    //new InteropPermission(InteropKind::ClrInterop).assert(); // get dll interop permission
    try {
        System.IO.File::Move(filenameOutTemp, filenameOut);
    }
    catch(Exception::Error) {
         warning("move failed");
    }

hope someone can please help :)

Similar to my very own problem http://stackoverflow.com/questions/17637619/move-a-file-ax2012 — ian_scho, Dec 03 '13 at 09:28
:( If all else fails, restart the AOS, try instanciating a System.Diagnostics.Process and execute a 'move' command The very last resort. — ian_scho, Dec 03 '13 at 09:38

score 1 · Answer 1 · edited May 23 '17 at 11:57

1

The code in batch is executed by .Net, which do not have deterministic garbage collection.

This is a problem as AsciiIo files are closed when garbage collecting the AsciiIo object!

You may solve the problem by programatically invoking the garbage collector. Only do this in batch!

edited May 23 '17 at 11:57

Community

1
1

answered Dec 05 '13 at 10:32

Jan B. Kjeldsen

17,817
5
32
50

score 0 · Answer 2 · answered Dec 09 '13 at 23:22

0

Have you tried creating a static server method much like WinAPIServer::CopyFile(...) and then calling that method when executing the batch?

answered Dec 09 '13 at 23:22

Alex Kwitny

11,211
2
49
71

System.IO.File::Move fails, The process cannot access the file because it is being used by another process

2 Answers2