/decorator /Reset Columns Decorator()
ResetColumnsDecorator instance — end-users will never need to
do this themselves since grids are fully constructed based on their XML definition files by the
ResetColumnsDecorator class provides a single button users can use to remove any column filters
they may have applied, and/or reset the column sort order to original state.
This decorator creates a single empty DIV element with the class
which can be used to style the button.
Container Html Rendered()