[Glade-users] Destroy and rebuild a treeview widget

[Guillaume Ruch]

> Mehdi Rabah wrote:
>> Hi Guillaume,
>>
>> I'm quite new to gtk/glade but I understand you can't manage the rows of a
>> treeview from glade2.
>> So you have to manage treeViewColumn or dataColumn from within your code,
>> and if you want to remove/add column, you have to use the method of the
>> treeView class
>
> Hi,
>      Currently with glade-2 or glade-3 there is still no real support
> for treeview editing (should be in glade-3 sometime this year...).
>
> If your going to rebuild your treeview I'd suggest you dont bother
> building it in glade at all at this point (since you need to setup
> all the columns and renderers yourself).
>
> Basicly... after creating and adding the treeview...
> gtk_container_remove() should be enough to remove the treeview
> from its container and destroy it... at which point you should
> create your new treeview and add it to the hierarchy.
>
> Cheers,
>                           -Tristan

Hi,
Once again, thanks for your rapid answer :) In fact, like medhi, I wanted to use clist, but it's
deprecated so...  I cant really understand treeview/liststore, even with the gtk tutorials, I
think I'm in the right way, but I know I lack 2 or 3 things to make it work... Can you have a look
on this?


create_treeview()

  GtkCellRenderer   	*rend;
  GtkTreeViewColumn 	*col;
  GtkWidget    		*listview;
  GtkListStore 		*liststore;
  gchar        		*sql, *label;
  MYSQL_RES    		*res_str;
  MYSQL_FIELD 		*field;
  MYSQL_ROW   		 db_row;
  gint			 i, cols;
  gchar     *row[20] = {"", "", "", "", "",
                        "", "", "", "", "",
                        "", "", ""};


sql = g_strconcat("select * from ", nom_table, 0L);
  g_print("sql is: %s\n", sql);
  if (mysql_query (conn, sql) != 0)
   {
      g_print("Echec de la requete...\n");
      return 0L;
   }
  res_str = mysql_store_result (conn);
 g_print("mysql_store_result...OK\n");



/**********************Création de la liste****************/
   cols = mysql_num_fields(res_str);



   liststore= gtk_list_store_new(gint cols);


   while ((db_row = mysql_fetch_row (res_str)) != 0L)
     {
        for (i = 0; i < cols; i++)
          {
              row[i] = db_row[i];
          }
        gtk_list_store_append(liststore, row);

     }

/* Creation de la vue */

listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(liststore));


for (i = 0; i < cols; i++)
    {
       mysql_field_seek(res_str, i);
       field = mysql_fetch_field(res_str);
       label = gtk_label_new (field->name);
       rend = gtk_cell_renderer_text_new();
       col = gtk_tree_view_column_new_with_attributes(label,
       rend,"text", TEXT_COLUMN, NULL);
       gtk_tree_view_append_column(GTK_TREE_VIEW(listview), col);
    }


    gtk_widget_show (listview)

}

This may display the contents of mysql_fetch_row on each row till it returns null, but I don't
know how to add data and I can't find the answer (i'm sure it's on the tutorial but...) After, a
click on  a button will remove the data and rebuild it (I hope the dynamic column creation is
right...) Content will never excess 13 columns.

Thanks to this great useful list

G.Ruch