FileSystemWatcher.EnableRaisingEvents 속성
구성 요소가 활성화되는지 여부를 나타내는 값을 가져오거나 설정합니다.
네임스페이스: System.IO
어셈블리: System(system.dll)
구문
‘선언
Public Property EnableRaisingEvents As Boolean
‘사용 방법
Dim instance As FileSystemWatcher
Dim value As Boolean
value = instance.EnableRaisingEvents
instance.EnableRaisingEvents = value
public bool EnableRaisingEvents { get; set; }
public:
property bool EnableRaisingEvents {
bool get ();
void set (bool value);
}
/** @property */
public boolean get_EnableRaisingEvents ()
/** @property */
public void set_EnableRaisingEvents (boolean value)
public function get EnableRaisingEvents () : boolean
public function set EnableRaisingEvents (value : boolean)
속성 값
구성 요소가 활성화되면 true이고, 그렇지 않으면 false입니다. 기본값은 false입니다. Visual Studio 2005의 디자이너에서 구성 요소를 사용하고 있으면 기본값은 true입니다.
설명
EnableRaisingEvents를 true로 설정하지 않으면 구성 요소가 이벤트를 발생시키지 않습니다.
참고
Path 속성이 설정되어 있고 EnableRaisingEvents를 true로 설정해야만 지정된 디렉터리가 조사됩니다.
WaitForChanged 메서드를 사용하면 이 속성이 false로 설정된 경우에도 이벤트 처리기를 호출하여 파일 변경 이벤트에 응답할 수 있습니다.
예제
다음 예제에서는 런타임에 지정된 디렉터리를 조사하는 FileSystemWatcher를 만듭니다. 구성 요소는 디렉터리에 있는 텍스트 파일의 LastWrite 및 LastAccess 시간 변경, 작성, 삭제 또는 이름 변경을 조사하도록 설정됩니다. 파일이 변경, 작성 또는 삭제되면 해당 파일의 경로가 콘솔에 출력됩니다. 파일 이름이 변경되면 콘솔에 이전 경로와 새 경로가 출력됩니다.
이 예제에서는 System.Diagnostics 및 System.IO 네임스페이스를 사용합니다.
Public Class Watcher
Public Shared Sub Main()
Run()
End Sub
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Private Shared Sub Run
Dim args() As String = System.Environment.GetCommandLineArgs()
' If a directory is not specified, exit the program.
If args.Length <> 2 Then
' Display the proper way to call the program.
Console.WriteLine("Usage: Watcher.exe (directory)")
Return
End If
' Create a new FileSystemWatcher and set its properties.
Dim watcher As New FileSystemWatcher()
watcher.Path = args(1)
' Watch for changes in LastAccess and LastWrite times, and
' the renaming of files or directories.
watcher.NotifyFilter = (NotifyFilters.LastAccess Or NotifyFilters.LastWrite Or NotifyFilters.FileName Or NotifyFilters.DirectoryName)
' Only watch text files.
watcher.Filter = "*.txt"
' Add event handlers.
AddHandler watcher.Changed, AddressOf OnChanged
AddHandler watcher.Created, AddressOf OnChanged
AddHandler watcher.Deleted, AddressOf OnChanged
AddHandler watcher.Renamed, AddressOf OnRenamed
' Begin watching.
watcher.EnableRaisingEvents = True
' Wait for the user to quit the program.
Console.WriteLine("Press 'q' to quit the sample.")
While Chr(Console.Read()) <> "q"c
End While
End Sub
' Define the event handlers.
Private Shared Sub OnChanged(source As Object, e As FileSystemEventArgs)
' Specify what is done when a file is changed, created, or deleted.
Console.WriteLine("File: " & e.FullPath & " " & e.ChangeType)
End Sub
Private Shared Sub OnRenamed(source As Object, e As RenamedEventArgs)
' Specify what is done when a file is renamed.
Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath, e.FullPath)
End Sub
End Class
public class Watcher
{
public static void Main()
{
Run();
}
[PermissionSet(SecurityAction.Demand, Name="FullTrust")]
public static void Run()
{
string[] args = System.Environment.GetCommandLineArgs();
// If a directory is not specified, exit program.
if(args.Length != 2)
{
// Display the proper way to call the program.
Console.WriteLine("Usage: Watcher.exe (directory)");
return;
}
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = args[1];
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
// Only watch text files.
watcher.Filter = "*.txt";
// Add event handlers.
watcher.Changed += new FileSystemEventHandler(OnChanged);
watcher.Created += new FileSystemEventHandler(OnChanged);
watcher.Deleted += new FileSystemEventHandler(OnChanged);
watcher.Renamed += new RenamedEventHandler(OnRenamed);
// Begin watching.
watcher.EnableRaisingEvents = true;
// Wait for the user to quit the program.
Console.WriteLine("Press \'q\' to quit the sample.");
while(Console.Read()!='q');
}
// Define the event handlers.
private static void OnChanged(object source, FileSystemEventArgs e)
{
// Specify what is done when a file is changed, created, or deleted.
Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
}
private static void OnRenamed(object source, RenamedEventArgs e)
{
// Specify what is done when a file is renamed.
Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath, e.FullPath);
}
}
public ref class Watcher
{
private:
// Define the event handlers.
static void OnChanged( Object^ /*source*/, FileSystemEventArgs^ e )
{
// Specify what is done when a file is changed, created, or deleted.
Console::WriteLine( "File: {0} {1}", e->FullPath, e->ChangeType );
}
static void OnRenamed( Object^ /*source*/, RenamedEventArgs^ e )
{
// Specify what is done when a file is renamed.
Console::WriteLine( "File: {0} renamed to {1}", e->OldFullPath, e->FullPath );
}
public:
[PermissionSet(SecurityAction::Demand, Name="FullTrust")]
int static run()
{
array<String^>^args = System::Environment::GetCommandLineArgs();
// If a directory is not specified, exit program.
if ( args->Length != 2 )
{
// Display the proper way to call the program.
Console::WriteLine( "Usage: Watcher.exe (directory)" );
return 0;
}
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher^ watcher = gcnew FileSystemWatcher;
watcher->Path = args[ 1 ];
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
watcher->NotifyFilter = static_cast<NotifyFilters>(NotifyFilters::LastAccess |
NotifyFilters::LastWrite | NotifyFilters::FileName | NotifyFilters::DirectoryName);
// Only watch text files.
watcher->Filter = "*.txt";
// Add event handlers.
watcher->Changed += gcnew FileSystemEventHandler( Watcher::OnChanged );
watcher->Created += gcnew FileSystemEventHandler( Watcher::OnChanged );
watcher->Deleted += gcnew FileSystemEventHandler( Watcher::OnChanged );
watcher->Renamed += gcnew RenamedEventHandler( Watcher::OnRenamed );
// Begin watching.
watcher->EnableRaisingEvents = true;
// Wait for the user to quit the program.
Console::WriteLine( "Press \'q\' to quit the sample." );
while ( Console::Read() != 'q' )
;
}
};
int main() {
Watcher::run();
}
public class Watcher
{
public static void main(String[] args1)
{
Run();
}
/** @attribute PermissionSet(SecurityAction.Demand, Name="FullTrust")
*/
public static void Run()
{
String args[] = System.Environment.GetCommandLineArgs();
// If a directory is not specified, exit program.
if (args.length != 2) {
// Display the proper way to call the program.
Console.WriteLine("Usage: Watcher.exe (directory)");
return;
}
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.set_Path(args[1]);
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories.
*/
watcher.set_NotifyFilter
(NotifyFilters.LastAccess |NotifyFilters.LastWrite |
NotifyFilters.FileName | NotifyFilters.DirectoryName);
// Only watch text files.
watcher.set_Filter("*.txt");
// Add event handlers.
watcher.add_Changed(new FileSystemEventHandler(OnChanged));
watcher.add_Created(new FileSystemEventHandler(OnChanged));
watcher.add_Deleted(new FileSystemEventHandler(OnChanged));
watcher.add_Renamed(new RenamedEventHandler(OnRenamed));
// Begin watching.
watcher.set_EnableRaisingEvents(true);
// Wait for the user to quit the program.
Console.WriteLine("Press \'q\' to quit the sample.");
while ((Console.Read() != 'q')) {
}
}
// Define the event handlers.
private static void OnChanged(Object source,FileSystemEventArgs e)
{
// Specify what is done when a file is changed, created, or deleted.
Console.WriteLine(("File: " + e.get_FullPath() + " "
+ e.get_ChangeType()));
} //OnChanged
private static void OnRenamed(Object source, RenamedEventArgs e)
{
// Specify what is done when a file is renamed.
Console.WriteLine("File: {0} renamed to {1}",
e.get_OldFullPath(),e.get_FullPath());
} //OnRenamed
} //Watcher
플랫폼
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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.NET Framework
2.0, 1.1, 1.0에서 지원