| Dart.PowerTCP.Zip Namespace > ArchiveItem Class : Encryption Property |
<DescriptionAttribute("The encryption algorithm selection. Please note that each item in a zip archive can have their own encryption method or passwrod specified")> <DefaultValueAttribute()> <CategoryAttribute("ArchiveItem")> Public Property Encryption As Encryption
Dim instance As ArchiveItem Dim value As Encryption instance.Encryption = value value = instance.Encryption
[Description("The encryption algorithm selection. Please note that each item in a zip archive can have their own encryption method or passwrod specified")] [DefaultValue()] [Category("ArchiveItem")] public Encryption Encryption {get; set;}
[Description("The encryption algorithm selection. Please note that each item in a zip archive can have their own encryption method or passwrod specified")] [DefaultValue()] [Category("ArchiveItem")] public: __property Encryption get_Encryption(); public: __property void set_Encryption( Encryption value );
[Description("The encryption algorithm selection. Please note that each item in a zip archive can have their own encryption method or passwrod specified")] [DefaultValue()] [Category("ArchiveItem")] public: property Encryption Encryption { Encryption get(); void set ( Encryption value); }
An application should check this property to verify if a password is required to unzip this archive.
When creating an archive, this property can be used to apply an encryption type to a single item. To apply an encryption type to all items in the archive, use the Archive.Encryption property of the Archive object.
When an archive is opened, the Encryption property reflects what was opened. When an item is added using Archive.Add this property defaults to the value of Archive.DefaultEncryption.
AES encryption is designed to be compatible with WinZip 9. The technique used is not the same as in the PowerTCP Zip Compression Tool or in PKZip 2.5 and is not compatible with those products at this time.
' Be sure to import the namespace by putting "Imports Dart.PowerTCP.Zip" ' at the top of your class. ' Add a file using the ArchiveItem constructor Dim item = New ArchiveItem("c:\Test\\file1.txt") ' Add a comment to this item item.Comment = "This is file1.txt" ' Use encryption for just this item item.Encryption = Encryption.Standard item.Password = "testme" Archive1.Add(item) ' Add a file using the filename. This could also be used for adding wildcard collections Archive1.Add("c:\Test\file2.log") ' Add a wildcard collection of files ' In this case, all "txt" files in the directory "c:\Test" are added, except "file1.txt" ' Subfolders are not included, but the paths are preserved. Archive1.IncludeSubs = True Archive1.ExcludePattern = "file1.txt" Archive1.PreservePath = True Archive1.Add("c:\Test\*.txt") ' zip the data Archive1.Zip("c:\test.zip")
// Be sure to import the namespace by putting "using Dart.PowerTCP.Zip;" // at the top of your class. // Add a file using the ArchiveItem constructor ArchiveItem item = new ArchiveItem("c:\\Test\\file1.txt"); // Add a comment to this item item.Comment = "This is file1.txt"; // Use encryption for just this item item.Encryption = Encryption.Standard; item.Password = "testme"; archive1.Add(item); // Add a file using the filename. This could also be used for adding wildcard collections archive1.Add("c:\\Test\\file2.log"); // Add a wildcard collection of files // In this case, all "txt" files in the directory "c:\Test" are added, except "file1.txt" // Subfolders are not included, but the paths are preserved. archive1.IncludeSubs = true; archive1.ExcludePattern= "file1.txt"; archive1.PreservePath = true; archive1.Add("c:\\Test\\*.txt"); // Zip the data archive1.Zip("c:\\test.zip");