This topic demonstrates how to extract files and folders from a zip file to a folder located in memory. With Xceed Zip for .NET, a folder is a folder; it does not matter if it is located within a zip file, on disk or in memory.
When unzipping the contents of a spanned zip file, the last disk must be in the drive before the operation begins (when the instance of the ZipArchive class has been created).
Basic steps
To extract items from a zip file to memory, the following steps must be performed:
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Retrieve a reference to a new or existing zip file using the ZipArchive class.
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Retrieve a reference to a new or existing folder using the MemoryFolder class. This is the location to which the files contained within the zip file will be extracted to.
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Call the CopyFilesTo method to copy the entire contents of the zip to the destination folder.
Demonstration
This example demonstrates how to unzip files from a zip file to a folder located in memory.
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Things you should consider
The main questions you should ask yourself when extracting items from a zip file are:
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Do you want to filter (specify specific files and folders) the items that are to be unzipped? Use filters.
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Do you want to display the status of the operation? See the Events topic.
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Do you only want to copy a specific file or folder? Use the CopyTo method.
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Do you want to move items rather than copy them? Use the MoveTo and MoveFilesTo methods.