Asp.net C # use SharpZipLib for encryption compression, encryption, and decompression

1. Create a zip file and add the file:

The code is as follows:	Copy code
Using (ZipFile zip = ZipFile. Create (@ "E: test.zip ")) { Zip. BeginUpdate (); Zip. Add (@ "E: file 1.txt "); Zip. Add (@ "E: file 2.txt "); Zip. CommitUpdate (); }

2. Compress folders into files

The code is as follows:	Copy code
(New FastZip (). CreateZip (@ "E: test.zip", @ "E: test", true ,"");

 

The last parameter is a filter file rule represented by a regular expression. The CreateZip method has three overloaded versions, including Directory filter parameters, File Filter parameters, and a bool type parameter used to specify whether sub-directory recursion is performed.

3. Add the file to an existing zip file.

The code is as follows:	Copy code
Using (ZipFile zip = new ZipFile (@ "E: test.zip ")) { Zip. BeginUpdate (); Zip. Add (@ "E: test.doc "); Zip. CommitUpdate (); }

 

4. List zip files

The code is as follows:	Copy code
Using (ZipFile zip = new ZipFile (@ "E: test.zip ")) { String list = string. Empty; Foreach (ZipEntry entry in zip)     { List + = entry. Name + "rn ";     } MessageBox. Show (list ); }

 

 

5. Delete a file in the zip file

The code is as follows:	Copy code
Using (ZipFile zip = new ZipFile (@ "E: test.zip ")) { Zip. BeginUpdate (); Zip.Delete(@”test.doc "); Zip.Delete(@”test22.txt "); Zip. CommitUpdate (); }

 

6. Decompress the zip file to the specified directory.

The code is as follows:	Copy code
(New FastZip (). ExtractZip (@ "E: test.zip", @ "E: test ","");