FileSystemWatcher +對話框

我想每次顯示一個對話框時，一些文件已被更改...但每當該對話框顯示，我的應用程序凍結。我怎樣才能做到這一點與另一個線程？有任何想法嗎？FileSystemWatcher +對話框

protected virtual void CreateWatcher (object path) 
{ 
    if (watcher != null) 
    { 
     watcher.EnableRaisingEvents = false; 
     watcher.Dispose(); 
    } 

    //Create a new FileSystemWatcher. 
    watcher = new FileSystemWatcher(); 

    //Set the filter to only catch TXT files. 
    watcher.Filter = "*.txt"; 
    watcher.IncludeSubdirectories = true; 
    watcher.NotifyFilter = NotifyFilters.LastWrite; 

    //Subscribe to the Created event. 
    watcher.Changed += new FileSystemEventHandler (OnChanged); 
    watcher.Created += new FileSystemEventHandler (OnChanged); 
    //watcher.Deleted += new FileSystemEventHandler (OnChanged); 
    //watcher.Renamed += new RenamedEventHandler (OnRenamed); 

    //Set the path to C:\\Temp\\ 
    watcher.Path = @path.ToString(); 

    //Enable the FileSystemWatcher events. 
    watcher.EnableRaisingEvents = true; 
} 
void OnChanged (object source, FileSystemEventArgs e) 
{ 
    NovaInteracaoMsg(); 
    } 

protected virtual void NovaInteracaoMsg() 
{ 
    novaInteracao = new MessageDialog (this, DialogFlags.DestroyWithParent, MessageType.Question, ButtonsType.YesNo, "Foi detectada a mudança nos arquivos do modelo. Deseja inserir uma nova interação?"); 
    ResponseType result = (ResponseType)novaInteracao.Run(); 

    if (result == ResponseType.Yes) { 
     OpenInfoWindow (novaInteracaoPath); 
     return; 
    } 
    else { 
     novaInteracao.Destroy(); 
    } 
} 

void OnRenamed (object source, RenamedEventArgs e) 
{ 
    //Console.WriteLine ("File: {0} renamed to\n{1}", e.OldFullPath, e.FullPath); 
    } 

protected virtual void OpenInfoWindow (string path) 
{ 
    ModMemory.Iteration iterWin = new ModMemory.Iteration (path); 
    iterWin.Modal = true; 
    iterWin.Show(); 

    iterWin.Destroyed += delegate { 
     // TODO: Funções para executar quando a janela for fechada 
     // Possivelmente atualizar o número de interações realizadas 
     Console.WriteLine ("Janela modal destruída");   
    }; 
}

來源

2010-11-22 Vinicius Cordeiro

那個對話框是什麼？ MessageBox.Show？ – 2010-11-22 19:51:33