Get/Set the number of right FixedColumns.
Please note - this property requires the FixedColumns extension for DataTables.
This method is either a Getter or a Setter for the number of columns that are fixed to the right of the table. If no argument is supplied then the method acts as a Getter. If an argument is provided then that value is set as the new number of columns to be fixed to the right and the table is updated.
Getter for the number of columns fixed to the right.
The number of columns that are fixed to the right.