zip in vb.net

I read thru it and I guess I am just dense and can not find my answer.

:(

            ZipFile zip = new ZipFile(@"D:\Temp\test.zip");
            zip.AddFile(@"D:\Temp\sad-face.jpg", @"\sad\");
            zip.Save();

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Or in VB.NET

Dim zip As New ZipFile("D:\Temp\test.zip")
zip.AddFile("D:\Temp\sad-face.jpg", "\sad\")
zip.Save()

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my  zipfile object does not have an additem method.

That's an example using the DotNetZip library I provided a link for in the first post. The method is AddFile, not additem.

I miss typed... I dont have that method either

these samples target dotnet 2.0 and 3.0... most sites have dotnet 4.x

dotnet 4.x is backward compatible.

Make sure you have a reference to the correct library.

I dug up a stackoverflow article that addresses this. Interestingly, at the end of the article it uses basically the same code that I have provided above.

http://stackoverflow.com/questions/27009422/how-to-add-ionic-zip-dll-in-c-net-project-and-use-it-to-create-a-zip-from-folde

dotnet 4.5 is not backward compatible since it is missing most of the zipfile methods. https://msdn.microsoft.com/en-us/library/system.io.compression.zipfile(v=vs.110).aspx

Use the DotNetZip library I suggested in the first post. It's open source and with it you can do what you need to do in 3 lines of code. The library is compatible with .net 2.0 and up.