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Zip for .NET Fundamentals / High Level: C1ZipFile, C1ZipEntry and C1ZipEntryCollection Classes
In This Topic
    High Level: C1ZipFile, C1ZipEntry and C1ZipEntryCollection Classes
    In This Topic

    These are the highest level classes in the C1Zip library. They allow you to create and manage zip files. Using zip files to store application data provides the following benefits:

    C1ZipFile Class

    The C1ZipFile class encapsulates a zip file. After you create a C1ZipFile object, you can attach it to an existing zip file or tell it to create a new empty zip file for you. For example:

    To write code in Visual Basic

    Visual Basic
    Copy Code
    ' Create a C1ZipFile object.
    Dim myZip As New C1ZipFile()
    ' Create a new (empty) zip file.
    myZip.Create("New.zip")
    ' Open an existing zip file.
    myZip.Open("Old.zip")
    

    To write code in C#

    C#
    Copy Code
    // Create a C1ZipFile object.
    C1ZipFile myZip = new C1ZipFile();
    // Create a new (empty) zip file.
    myZip.Create("New.zip");
    // Open an existing zip file.
    myZip.Open("Old.zip");
    

    C1ZipEntryCollection Class

    After you have created or opened a zip file, use the Entries collection to inspect the contents of the zip file, or to add, expand, and delete entries. For example:

    To write code in Visual Basic

    Visual Basic
    Copy Code
    myZip.Entries.Add("MyData.txt")
    myZip.Entries.Add("MyData.xml")
    myZip.Entries.Add("MyData.doc")
    Dim zipEntry As C1ZipEntry
    For Each zipEntry In  myZip.Entries
       Console.WriteLine(zipEntry.FileName)
    Next zipEntry
    myZip.Open("Old.zip");
    

    To write code in C#

    C#
    Copy Code
    myZip.Entries.Add("MyData.txt"); 
    myZip.Entries.Add("MyData.xml"); 
    myZip.Entries.Add("MyData.doc");
    foreach (C1ZipEntry zipEntry in myZip.Entries)
        Console.WriteLine(zipEntry.FileName);
    

    C1ZipEntry Class

    The C1ZipEntry class exposes properties and methods that describe each entry, including its original file name, size, compressed size, and so on. It also has a OpenReader method that returns a stream object, so you can read the entry contents without expanding it first.