About the Hover Column category

Directory Hover Column
1

Hover Column: Simple CSS add-on that will hide the contents of a Grid Column until the user hovers over the row, by simply adding a CSS class to column.

grid.addComponentColumn(person -> {
               //this component will be invisible
    		HorizontalLayout buttons = new HorizontalLayout();
    		Button edit = new Button(VaadinIcon.PENCIL.create());
               //exclude this button so that it is always displayed
    		edit.addClassName(HoverColumn.HOVER_COLUMN_EXCLUDE_CLASS);
    		Button delete = new Button(VaadinIcon.TRASH.create());
    		buttons.add(edit,delete);
    		return buttons;
    	}).setClassNameGenerator(person -> {
    		return HoverColumn.HOVER_COLUMN_CLASS;
    	});

Useful for hiding redundant button or status columns.