C1ZipFile Class

Used for creating, opening, and managing zip files.

Inheritance

object

C1ZipFile

Implements

IDisposable

Namespace: C1.Zip

Assembly: C1.Zip.dll

Syntax

public class C1ZipFile : IDisposable

Public Class C1ZipFile
    Implements IDisposable

Remarks

Use the Open(Stream) or Create(Stream) methods to associate the C1Zip file object with a zip file on disk. Then use the Entries property to add, remove, retrieve, or inspect individual entries in the zip file.

C1ZipFile can only be used with standard zip files. The component does not support other similar formats such as gzip, zip2, tar, or rar.

The standard zip file imposes some limitations on the size of each entry. You cannot use it to compress files larger than 4 gigabytes (uint.MaxValue).

Examples

The code below creates a zip file called sources.zip and adds all files with a "cs" extension to the zip file:

// get path for zip file and files to compress
string path = Application.ExecutablePath;
int pos = path.IndexOf(@"\bin");
path = path.Substring(0, pos + 1);

// create a zip file
C1ZipFile zip = new C1ZipFile();
zip.Create(path + "source.zip");

// add all files with extension cs to the zip file
foreach (string fileName in Directory.GetFiles(path, "*.cs"))
	zip.Entries.Add(fileName);

// show result
foreach (C1ZipEntry ze in zip.Entries)
{
	Console.WriteLine("{0} {1:#,##0} {2:#,##0}", 
		ze.FileName, ze.SizeUncompressed, ze.SizeCompressed);
}

Constructors

Name	Description
C1ZipFile()	Initializes a new instance of the C1ZipFile class.
C1ZipFile(Stream)	Initializes a new instance of the C1ZipFile class and opens a zip stream associated with this new instance.
C1ZipFile(Stream, bool)	Initializes a new instance of the C1ZipFile class and opens a zip stream associated with this new instance.
C1ZipFile(string)	Initializes a new instance of the C1ZipFile class and opens a zip file associated with this new instance.
C1ZipFile(string, bool)	Initializes a new instance of the C1ZipFile class and creates or opens a zip file associated with this new instance.

Properties

Name	Description
Comment	Gets or sets a comment associated with the current zip file.
CompressionLevel	Gets or sets the compression level to use when adding entries to the zip file.
Entries	Gets a C1ZipEntryCollection that contains the entries in the zip file.
FileName	Gets the name of the current zip file.
MemoryThreshold	Gets or sets the size of the largest stream to be compressed in memory.
OverwriteHidden	Determines whether the component should overwrite hidden files when extracting entries from the zip file.
OverwriteReadOnly	Determines whether the component should overwrite read-only files when extracting entries from the zip file.
OverwriteSystem	Determines whether the component should overwrite system files when extracting entries from the zip file.
Password	Gets or sets the password to use when adding or retrieving entries from the zip file.
TempFileName	Gets or sets the name of the temporary file to use when adding entries to the zip file.
UseUtf8Encoding	Determines whether file names and comments should be stored in UTF8 format.

Methods

Name	Description
Close()	Resets all data members of the C1ZipFile object.
CloseBatch()	Closes a zip file after it was opened with a call to the OpenBatch() method.
Create(Stream)	Creates a new zip file in a stream.
Create(string)	Creates an empty zip file on disk.
CreateAsync(Stream)	Asynchronous creates a new zip file in a stream.
IsZipFile(Stream)	Tests whether a stream contains a valid zip file.
IsZipFile(string)	Tests whether a file is a valid zip file.
Open(Stream)	Opens an existing zip file stored in a Stream.
Open(string)	Opens an existing zip file.
OpenAsync(Stream)	Asynchronous opens an existing zip file stored in a Stream.
OpenBatch()	Opens the zip file for multiple operations.
Refresh()	Refreshes all data members by re-opening the current zip file.

Events

Name	Description
Progress	Fired while data is being read from or written into a zip file.