DiskRequired Event

Raised when a new disk or split part is required.

Syntax

Visual Basic
C#

'Declaration
 
Public Event DiskRequired As DiskRequiredEventHandler

'Usage
 
Dim instance As ZipEvents

Dim handler As DiskRequiredEventHandler

 

AddHandler instance.DiskRequired, handler

public event DiskRequiredEventHandler DiskRequired

Event Data

The event handler receives an argument of type DiskRequiredEventArgs containing data related to this event. The following DiskRequiredEventArgs properties provide information specific to this event.

Property	Description
Action	Gets or sets a value indicating if the current operation should be aborted or if it should attempt to continue.
CurrentItem	Gets or sets the current FileSystemItem object being processed. (Inherited from Xceed.FileSystem.FileSystemEventArgs)
DiskNumber	Gets the number of the next required disk.
Reason	Gets a DiskRequiredReason value indicating the reason why a new disk is required.
SplitSize	Gets or sets a value representing the size, in bytes, of the next split part to be created in the case where the zip file is being split (not necessarily spanned).
TargetItem	Gets or sets the destination Xceed.FileSystem.FileSystemItem object. (Inherited from )
UserData	Gets or sets the opaque data that will be sent back to the event handler whenever an event is raised. (Inherited from )
ZipFile	Gets or sets the next zip file to write to or read from.

Example

The following example demonstrates how to create a spanned zip file.

Visual Basic
C#

Imports Xceed.Zip

Imports Xceed.FileSystem



Dim source As New DiskFolder( "c:\windows\fonts" )

Dim WithEvents zipEvents As New ZipEvents()



AddHandler zipEvents.DiskRequired, AddressOf Me.OnDiskRequired



Dim zip As New ZipArchive( zipEvents, Nothing, New DiskFile( "a:\test.zip" ) )



zip.AllowSpanning = true

source.CopyFilesTo( zip, true, true )



' This method will handle the DiskRequired events that are raised.

'

' The code contained within this method is the suggested implementation to use when spanning.

Private Sub OnDiskRequired( ByVal sender As Object, ByVal e As DiskRequiredEventArgs )

      If e.Action = DiskRequiredAction.Fail Then

            If MessageBox.Show( "Disk #" + e.DiskNumber.ToString() + " is required.", _

                                "Disk Required", _

                                MessageBoxButtons.OKCancel ) = DialogResult.OK Then

                  e.Action = DiskRequiredAction.Continue

            Else

                  e.Action = DiskRequiredAction.Fail

            End If

      End If

End Sub

using Xceed.Zip;

using Xceed.FileSystem;



DiskFolder source = new DiskFolder( @"c:\windows\fonts" );



ZipEvents zipEvents = new ZipEvents();

zipEvents.DiskRequired += new DiskRequiredEventHandler( this.OnDiskRequired );

ZipArchive zip = new ZipArchive( zipEvents, null, new DiskFile( @"a:\test.zip" ) );



zip.AllowSpanning = true;

source.CopyFilesTo( zip, true, true ); 



// This method will handle the DiskRequired events that are raised.

//

// The code contained within this method is the suggested implementation to use when spanning.

private void OnDiskRequired( object sender, DiskRequiredEventArgs e )

{    

        if( e.Action == DiskRequiredAction.Fail )

        {

                if( MessageBox.Show( "Disk #" + e.DiskNumber.ToString() + 

                                     " is required.", "Disk Required", 

                                     MessageBoxButtons.OKCancel ) == DialogResult.OK )

                        e.Action = DiskRequiredAction.Continue;

                else

                        e.Action = DiskRequiredAction.Fail;

        }

}

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ZipEvents Class
ZipEvents Members

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