Removing items from a local folder

Items can be deleted using the Delete method. With the Xceed FileSystem, a folder is a folder regardless of if it is located on a local disk, in a zip file, in memory, or on an FTP server.

The following example demonstrates how to delete a file on a local drive using the steps listed below:

Create an instance of a DiskFile which will represent the file on the local drive to delete.
Verify if the file exists prior to deleting it using the Exists property. If an attempt is made to delete a file that does not exist, an exception will be thrown.
Delete the file by calling its Delete method

VB.NET Copy Code

VB.NET	Copy Code
`Imports Xceed.FileSystem` `Dim file As New DiskFile( "c:\test.txt" )` `If file.Exists Then file.Delete() End If`

Imports Xceed.FileSystem

Dim file As New DiskFile( "c:\test.txt" )

If file.Exists Then file.Delete() End If

C# Copy Code

C#	Copy Code
`using Xceed.FileSystem;` `DiskFile file = new DiskFile( "c:\\test.txt" );` `if( file.Exists ) file.Delete();`

using Xceed.FileSystem;

DiskFile file = new DiskFile( "c:\\test.txt" );

if( file.Exists ) file.Delete();

Events

All methods exposed by the Xceed FileSystem's FileSystemItem, AbstractFolder, AbstractFile, and derived classes have an overload that can be used when events are required. Events can be handled by creating an instance of the FileSystemEvents class and subscribing to the desired events. For example:

VB.NET Copy Code

VB.NET	Copy Code
`Imports Xceed.FileSystem` `Dim file As New DiskFile("c:\test.txt") Dim events As New FileSystemEvents() AddHandler events.ByteProgression, AddressOf Me.byte_progression` `If file.Exists Then file.Delete( events, Nothing ) End If` `RemoveHandler events.ByteProgression, AddressOf Me.byte_progression` `Private Sub byte_progression(ByVal sender As Object, ByVal e As ByteProgressionEventArgs) System.Diagnostics.Debug.WriteLine(e.CurrentFileBytes.Percent.ToString()) End Sub`

Imports Xceed.FileSystem

Dim file As New DiskFile("c:\test.txt") Dim events As New FileSystemEvents() AddHandler events.ByteProgression, AddressOf Me.byte_progression

If file.Exists Then file.Delete( events, Nothing ) End If

RemoveHandler events.ByteProgression, AddressOf Me.byte_progression

Private Sub byte_progression(ByVal sender As Object, ByVal e As ByteProgressionEventArgs) System.Diagnostics.Debug.WriteLine(e.CurrentFileBytes.Percent.ToString()) End Sub

C# Copy Code

C#	Copy Code
using Xceed.FileSystem; DiskFile file = new DiskFile( @"c:\test.txt" ); FileSystemEvents events = new FileSystemEvents(); events.ByteProgression += new ByteProgressionEventHandler( this.byte_progression ); if( file.Exists ) file.Delete( events, null ); events.ByteProgression -= new ByteProgressionEventHandler( this.byte_progression ); private void byte_progression( object sender, ByteProgressionEventArgs e ) { System.Diagnostics.Debug.WriteLine( e.CurrentFileBytes.Percent.ToString() ); }

using Xceed.FileSystem;
 
DiskFile file = new DiskFile( @"c:\test.txt" );
FileSystemEvents events = new FileSystemEvents();
events.ByteProgression += new ByteProgressionEventHandler( this.byte_progression );
 
if( file.Exists )
  file.Delete( events, null );
 
events.ByteProgression -= new ByteProgressionEventHandler( this.byte_progression );
 
private void byte_progression( object sender, ByteProgressionEventArgs e )
{
  System.Diagnostics.Debug.WriteLine( e.CurrentFileBytes.Percent.ToString() );
}

Things to consider

Do you want to display progress information? Create an instance of the FileSystemEvents class and handle the ByteProgression and/or ItemProgression events.
Do you want to display progress information when a folder is being scanned? Create an instance of the FileSystemEvents class and handle the ScanningFolder event.
Do you want to intervene when an error occurs with one or more of the items being manipulated? Create an instance of the FileSystemEvents class and handle the ItemException event.