A DefaultBoolean enumeration value that specifies whether an end-user can sort data by the column's values.
End-users are allowed to sort data if the grid's DataControlBase.AllowSorting property is set to true. Individual columns provide the AllowSorting property, allowing the default behavior specified by the grid, to be overridden. Setting this property to 'True' or 'False' overrides the default behavior. This can be useful when it is required to prevent an end-user from sorting data by values of specific columns.