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Hi, I'm trying to add some files to a single zip file with ZipFile.Add() method. When I use BeginUpdate() and CommitUpdate() inside the loop, it is slow. When I use them before and after the loop, it is very fast but the zip file is corrupted. (Probably the file list isn't written at the end) Is this a normal behavior or am I missing something? Thanks in advance, CP

Hi,

It is not normal behaviour at all.  More input is required so we can determine were this is going awry.

Under what conditions is it failing?  Does it always fail?

Cheers, -jr-

 

It fails all the time. It doesn't raise any error but resulting zip file is corrupted. When I try to open the zip file it says 'Unexpected end of archive'

When I put the BeginUpdate() and CommitUpdate() in the for-next loop everything is fine, but very slow comparing to first.

Thanks

My code is like below (nothing special with it actually):

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Dim zip1 As Zip.ZipFile = Zip.ZipFile.Create(Me.txTargetZip.Text)

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zip1.BeginUpdate()
For Each strFilePath In strFiles 'strFiles is a simple string array

  zip1.Add(strFilePath)

Next
zip1.CommitUpdate()

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