[Gtk-sharp-list] Is there an sample on how to fill a ComboBoxEntry with data from ADO.Net?

Gaëtan Frenoy gaetan at frenoy.net
Fri Mar 10 03:20:31 EST 2006


Le Thu, 9 Mar 2006 17:26:40 -0300, Victor Rafael Rivarola Soerensen
(FANATICO y LOCO por Cristo) a écrit:
> I have spent the last few days trying to fill a simple combo box with
> data from a database but without success. Is there any free software
> out there that does this under Mono and Gtk#?

 I would assume that below example should do it but I could make
 it to work as well, at runtime, I receive the following error :

(<unknown>:2900): Gtk-CRITICAL **: gtk_tree_row_reference_new: assertion `GTK_IS
_TREE_MODEL (model)' failed

(<unknown>:2900): Gtk-CRITICAL **: gtk_tree_row_reference_new_proxy: assertion `
GTK_IS_TREE_MODEL (model)' failed

(<unknown>:2900): Gtk-CRITICAL **: gtk_cell_view_set_displayed_row: assertion `G
TK_IS_TREE_MODEL (cell_view->priv->model)' failed

 I guess my ComboBox is not properly initialized or something
 but did not find out the reason.

 Comments are welcome.

 Have a great day


(note:only relevant part of code given)

  [Glade.Widget] protected Gtk.ComboBox comboboxSeason = null;

  public void FillSeasonList()
    // Remove all items from list

    int selectedSeason = 0;
    int currentPosition = 0;

    // Read database entries
    foreach (Season season in DbManager.getSeasons())
      comboboxSeason.InsertText(currentPosition, season.Name);

      // Select the current season
      if (DateTime.Now >= season.StartDate && 
          DateTime.Now < season.StopDate)
        selectedSeason = currentPosition;


    // Select season
    comboboxSeason.Active = selectedSeason;

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