[Gtk-sharp-list] How to show dialog modal and wait for it?

Maciej Pilichowski bluedzins at wp.pl
Fri Dec 25 07:38:44 EST 2009


On Friday 25 December 2009 11:47:37 Rafa wrote:

> Are you sure the error is there? 

Well, I don't know. In my case I have FileChooseButton to select a 
file. From code I call its method (on an object) SetFilename. But the 
event SelectionChanged is called twice -- first with null filename, 
the second time with proper one.

And in handler of this event I load data from selected file and show 
the message dialog. Since the event is triggered twice I have two 
message dialogs.

Even if FileChooseButton has a bug (very odd double event) calling 
modal dialog should stop processing events in main dialog -- at least 
I would like to achieve this.

Below is shortened code:

public partial class MainWindow : Gtk.Window
protected virtual void OnFilechooserbuttonSelectionChanged 
  (object sender, System.EventArgs e)
  var md = new MessageDialog(this, DialogFlags.Modal, 
			MessageType.Error, ButtonsType.Close, "Some error");
public MainWindow () : base(Gtk.WindowType.Toplevel)
  Build ();
  var chooser = new FileChooserButton("title",FileChooserAction.Open);
  chooser.SelectionChanged += OnFilechooserbuttonSelectionChanged;

protected void OnDeleteEvent (object sender, DeleteEventArgs a)
  Application.Quit ();
  a.RetVal = true;


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