WaitForChangedResult Structure

WaitForChangedResult Structure

 

Contains information on the change that occurred.

Namespace:   System.IO
Assembly:  System (in System.dll)

public struct WaitForChangedResult

NameDescription
System_CAPS_pubpropertyChangeType

Gets or sets the type of change that occurred.

System_CAPS_pubpropertyName

Gets or sets the name of the file or directory that changed.

System_CAPS_pubpropertyOldName

Gets or sets the original name of the file or directory that was renamed.

System_CAPS_pubpropertyTimedOut

Gets or sets a value indicating whether the wait operation timed out.

NameDescription
System_CAPS_pubmethodEquals(Object)

Indicates whether this instance and a specified object are equal.(Inherited from ValueType.)

System_CAPS_pubmethodGetHashCode()

Returns the hash code for this instance.(Inherited from ValueType.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns the fully qualified type name of this instance.(Inherited from ValueType.)

This example shows how to use a FileSystemWatcher synchronously by having it wait for a specific file change notification to occur.

Imports System.IO

Module Module1
    Sub Main()
        ' Define a path and a file name for a temporary file.
        Dim pathname As String = "C:\"
        Dim filename As String = "JunkFile.tmp"
        Dim filepathname As String = Path.Combine(pathname, filename)

        ' Create the temporary file and then close it.
        File.Create(filepathname).Close()

        Console.WriteLine("This application will terminate when you delete the {0} file", filepathname)

        ' Have a FileSystemWatcher monitor the path and file for changes.
        Dim fsw As New FileSystemWatcher(pathname, filename)
        fsw.NotifyFilter = NotifyFilters.FileName
        fsw.EnableRaisingEvents = True

        ' Suspend the calling thread until the file has been deleted.
        Dim cr As IO.WaitForChangedResult = fsw.WaitForChanged(WatcherChangeTypes.Deleted)

        ' Tell the user the file is deleted and exit.
        Console.WriteLine("The {0} files is deleted; program is exiting", cr.Name)
    End Sub
End Module

' This code produces the following output.
' 
'  This application will terminate when you delete the C:\JunkFile.tmp file
'  The JunkFile.tmp files is deleted; program is exiting

.NET Framework
Available since 1.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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