import { ChildProperty } from '@syncfusion/ej2-base';
import { PredicateModel, ICustomOptr } from '@syncfusion/ej2-grids';
import { FilterType, FilterHierarchyMode } from '../base/enum';
/**
 * Configures the filtering behavior of the Gantt.
 */
export declare class FilterSettings extends ChildProperty<FilterSettings> {
    /**
     * Specifies the columns to be filtered at initial rendering of the Gantt.
     * You can also get the columns that were currently filtered.
     *
     * @default []
     */
    columns: PredicateModel[];
    /**
     * Defines filter type of Gantt.
     * * `Menu` - Enables menu filters in Grid.
     * * `Excel` - Specifies the filtersetting type as excel.
     *
     * @default Menu
     * @isenumeration true
     * @asptype FilterType
     */
    type: FilterType;
    /**
     * The `operators` is used to override the default operators in filter menu. This should be defined by type wise
     * (string, number, date and boolean). Based on the column type, this customize operator list will render in filter menu.
     *
     * @default null
     */
    operators: ICustomOptr;
    /**
     * If ignoreAccent set to true, then filter ignores the diacritic characters or accents while filtering.
     *
     * @default false
     */
    ignoreAccent: boolean;
    /**
     * Defines the filter types. The available options are,
     * `Parent`: Shows the filtered record with parent record.
     * `Child`: Shows the filtered record with child record.
     * `Both` : shows the filtered record with both parent and child record.
     * `None` : Shows only filtered record.
     *
     * @default Parent
     * @isEnumeration true
     * @asptype FilterHierarchyMode
     */
    hierarchyMode: FilterHierarchyMode;
}