Mono.Addins.Gui.ProgressDialog.SetMessage C# (CSharp) Method

        public void SetMessage(string msg)
        {
            Gtk.Application.Invoke (delegate {
                labelMessage.Text = msg;
            });
        }

		protected void OnAdd (object sender, EventArgs e)
		{
			NewSiteDialog dlg = new NewSiteDialog (this);
			try {
				if (dlg.Run ()) {
					string url = dlg.Url;
					if (!url.StartsWith ("http://") && !url.StartsWith ("https://") && !url.StartsWith ("file://")) {
						url = "http://" + url;
					}
					
					try {
						new Uri (url);
					} catch {
						Services.ShowError (null, "Invalid url: " + url, null, true);
					}
					
					if (!service.Repositories.ContainsRepository (url)) {
						ProgressDialog pdlg = new ProgressDialog (this);
						pdlg.Show ();
						pdlg.SetMessage (AddinManager.CurrentLocalizer.GetString ("Registering repository"));
						
						bool done = false;
						AddinRepository rr = null;
						Exception error = null;
						
						ThreadPool.QueueUserWorkItem (delegate {
							try {
								rr = service.Repositories.RegisterRepository (pdlg, url, true);
							} catch (System.Exception ex) {
								error = ex;
							} finally {
								done = true;
							}
						});
						
						while (!done) {
							if (Gtk.Application.EventsPending ())
								Gtk.Application.RunIteration ();
							else
								Thread.Sleep (100);
						}

						pdlg.Destroy ();
						
						if (pdlg.HadError) {
							if (rr != null)
								service.Repositories.RemoveRepository (rr.Url);
							return;
						}
						
						if (error != null) {
							Services.ShowError (error, "The repository could not be registered", null, true);
							return;
						}
						
						AppendRepository (rr);
					}
				}
			} finally {
				dlg.Destroy ();
			}
		}