'Declaration
 
Protected Overloads Overridable Function DoOpenWrite( _
   ByVal session As FileSystemEventsSession, _
   ByVal overwrite As Boolean, _
   ByVal share As FileShare, _
   ByVal sourceFileHint As AbstractFile, _
   ByVal openPhysicalStreamOnly As Boolean, _
   ByVal outputStream As Stream, _
   ByVal compressionMethod As CompressionMethod, _
   ByVal compressionLevel As CompressionLevel, _
   ByVal encryptionPassword As String, _
   ByVal encryptionMethod As EncryptionMethod, _
   ByVal encryptionStrength As Integer _
) As Stream

'Usage
 
Dim instance As ZippedFile
Dim session As FileSystemEventsSession
Dim overwrite As Boolean
Dim share As FileShare
Dim sourceFileHint As AbstractFile
Dim openPhysicalStreamOnly As Boolean
Dim outputStream As Stream
Dim compressionMethod As CompressionMethod
Dim compressionLevel As CompressionLevel
Dim encryptionPassword As String
Dim encryptionMethod As EncryptionMethod
Dim encryptionStrength As Integer
Dim value As Stream
 
value = instance.DoOpenWrite(session, overwrite, share, sourceFileHint, openPhysicalStreamOnly, outputStream, compressionMethod, compressionLevel, encryptionPassword, encryptionMethod, encryptionStrength)

protected virtual Stream DoOpenWrite( 
   FileSystemEventsSession session,
   bool overwrite,
   FileShare share,
   AbstractFile sourceFileHint,
   bool openPhysicalStreamOnly,
   Stream outputStream,
   CompressionMethod compressionMethod,
   CompressionLevel compressionLevel,
   string encryptionPassword,
   EncryptionMethod encryptionMethod,
   int encryptionStrength
)

Parameters

session

A reference to a Xceed.FileSystem.FileSystemEventsSession object which is responsible for raising all events that occur during the process.

overwrite

true if existing data for the file should be replaced; false if existing data should be preserved, appending new data at the end.

share

A System.IO.FileShare constant that determines how the file will be shared by different processes.

sourceFileHint

openPhysicalStreamOnly

outputStream

compressionMethod

The CompressionMethod that will be used to compress the file.

compressionLevel

The CompressionLevel that will be used when compressing the file.

encryptionPassword

The password used to encrypt the file.

encryptionMethod

The EncryptionMethod used to encrypt the file.

encryptionStrength

The encryption strength used to encrypt the file. Encryption strength only applies when EncryptionMethod.WinZipAes is used.

Return Value

The returned stream is guaranteed to be writable, but may or may not be seekable.

If there is no existing data, the parameter overwrite is ignored.

.NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

.NET Standard: netstandard2.0, netstandard2.1

.NET Framework: net20, net35, net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

Reference

ZippedFile Class
ZippedFile Members
Overload List