使用MonoDevelop开发GTK#图形界面

protected virtual void OnExit(object sender, System.EventArgs e)
{
   Application.Quit();
}

For the OnOpen method:

  protected virtual void OnOpen(object sender, System.EventArgs e)  {     
// Reset the logTreeView and change the window back to original size     
int width, height;     
this.GetDefaultSize( out width, out height );     
this.Resize( width, height );     
logTextView.Buffer.Text = "";     
// Create and display a fileChooserDialog     
FileChooserDialog chooser = new FileChooserDialog(       
 "Please select a logfile to view ...",        this,        FileChooserAction.Open,        
"Cancel", ResponseType.Cancel,       
 "Open", ResponseType.Accept );     
if( chooser.Run() == ( int )ResponseType.Accept )     
{        
// Open the file for reading.        
System.IO.StreamReader file =        
System.IO.File.OpenText( chooser.Filename );        
// Copy the contents into the logTextView        logTextView.Buffer.Text = file.ReadToEnd();        
// Set the MainWindow Title to the filename.       
 this.Title = "Nate's Log Viewer -- " + chooser.Filename.ToString();        
// Make the MainWindow bigger to accomodate the text in the logTextView        this.Resize( 640, 480 );        
// Close the file so as to not leave a mess.        
file.Close();     
} // end if     
chooser.Destroy();  
} // end method OnOpen

For the OnClose method:

  protected virtual void OnClose(object sender, System.EventArgs e)  {     
// Reset the logTreeView and change the window back to original size     
int width, height;     
this.GetDefaultSize( out width, out height );     
this.Resize( width, height );     
logTextView.Buffer.Text = "";     
// Change the MainWindow Title back to the default.     
this.Title = "Nate's Log Viewer";  
} // end method OnClose

For the OnAbout method:

  protected virtual void OnAbout(object sender, System.EventArgs e)  {     
// Create a new About dialog     
AboutDialog about = new AboutDialog();     
// Change the Dialog's properties to the appropriate values.     about.Name = "Nate's Log Viewer";     
about.Version = "1.0.0";     
// Show the Dialog and pass it control     
about.Run();     
// Destroy the dialog     
about.Destroy();  } // 
end method OnAbout