Re: Handling xevInsertDisk event with multipart zips

Alain [Xceed] — Fri, 09 Oct 2009 20:09:36 GMT

Hi Keith,

Unfortunetaly, the property SplitNameFormat exists only for our .Net Zip Components.

Since you are using our Active X Zip Library, you will have to manually code this functionality to your application after the zip operation is done:

PseudoCode: (exactly like what u did)

1) GetFiles on the folder ( that contains the split files)

2) Rename (basename).z01 to (basename).zip

3) Rename (basename).zip to (basename).highestExtensionNumber

Regards,

Alain,

Technical Support

Handling xevInsertDisk event with multipart zips

Keith — Fri, 11 Sep 2009 17:39:56 GMT

I have a multipart ZIP file which I believe was created with winzip. The files are named: file.z01, file.z02, ... file.z09, file.zip and file.z01 through file.z09 are 5 MB apiece and file.zip is 3 MB. If I try to uncompress or list the contents of the zip there is an xevInsertDisk event raised, but I can't seem to figure out how to tell it the appropriate file it should go to next. Even if I change bDiskInserted to true it just continues raising the insert disk events again.

I discovered from reading elsehwere that pkzip/winzip expect the last file in the series to have the .zip extension. Your docs (http://doc.xceedsoft.com/products/Xceedfilesystem/Xceed.Zip~Xceed.Zip.SplitNameFormat.html) talk about the XCeed ActiveX formats expecting the first file to have .zip and subsequent files to have .z02, z03, .... After discovering this I did a test where I renamed file.zip -> file.z10 and file.z01 -> file.zip, and at that point I no longer get the insert disk event and XCeed will process this correctly. Unfortunately, when I do that WinZip then complains that the archive is corrupt. Since most of my users have WinZip I don't want to do that, and I'm leery about temporarily renaming the files during the processing in case the user terminates things and I don't get to revert it back to the original names.

Now I'm using the XCeed Zip Compression Library v 6.1.7504.0, and with this I can't find any event/property to set which tells it to use this winzip/pkzip naming convention. Is there any way to accomplish this without renaming the files?

Xceed Zip Compression Library

Re: Handling xevInsertDisk event with multipart zips

Handling xevInsertDisk event with multipart zips