Bug-fix for GridVisualizationDialog (bug #165). Made sure that a previously selected grid (selected by use of setGrid()) stays selected when executing the dialog.
Bug-fix for GridVisualizationDialog (bug #165).
Made sure that a previously selected grid (selected by use of setGrid()) stays selected when executing the dialog.

tkemmer/ball,tkemmer/ball,tkemmer/ball,tkemmer/ball,tkemmer/ball,tkemmer/ball