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List:       gtkmm
Subject:    Gtk::TreeSelection problem
From:       Phil Wolff <adiabat () centurylink ! net>
Date:       2016-05-16 15:10:13
Message-ID: 5739E2D5.9060206 () centurylink ! net
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     int n = m_refFileSelection->count_selected_rows ();
     if ( n == 1 ) {
         Gtk::TreeIter iter = m_refFileSelection->get_selected ();
         if ( iter )  {
             m_refFileSelection->unselect ( iter );
         }
     }

and

     int n = m_refFileSelection->count_selected_rows ();
     if ( n != 0 ) {
         m_refFileSelection->unselect_all ();
     }

Both of these code snippets generate the following two error messages:

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