foreach ( @{$gridtable} ){
#        print Data::Dumper::Dumper( $_ );
       # Text
       $_->{'Text'}->destroy();
       # Pfeil
       $_->{'Pfeil'}->destroy();
       # Spacer
       $_->{'Spacer'}->destroy();
       # Grafik ( - Frame)
       $_->{'Grafik'}->destroy();
       # gridtable zurücksetzen
       $gridtable = [];
   } # /foreach