import React, { ReactNode } from 'react';
import { CommonProps } from '../Input/input';
export declare type CascaderValue = Array<string | number>;
export declare type CascaderOption = {
    /** 级联项的值 */
    value: string | number;
    /** 级联项的文本 */
    label: NonNullable<ReactNode>;
    /** 是否禁用级联项 */
    disabled?: boolean;
    /** 子级项 */
    children?: CascaderOption[];
};
export interface CascaderBaseProps<T extends (CascaderValue | CascaderValue[])> extends Omit<CommonProps<T | null>, 'onChange'> {
    /** 可选项数据源 */
    options: CascaderOption[];
    /** 选择后的回调 */
    onChange?: (value: T, selectedOptions: CascaderOption[]) => void;
    /**
     * 是否选择后即时触发改变
     * @default false
     */
    changeOnSelect?: boolean;
    /**
     * 次级菜单的展开方式
     * @default hover
     */
    expandTrigger?: 'hover' | 'click';
    /** 浮层样式名 */
    overlayClassName?: string;
    /** 选择后展示的渲染函数 */
    displayRender?: (selectedOptions: CascaderOption[]) => ReactNode;
    /** 是否支持搜索 */
    searchable?: boolean;
    /** 是否有清空功能 */
    clearable?: boolean;
}
export interface CascaderProps<T extends CascaderValue = CascaderValue> extends CascaderBaseProps<T> {
    onChange?: (value: T | null, selectedOptions: CascaderOption[]) => void;
}
export interface MultiCascaderProps<T extends CascaderValue> extends CascaderBaseProps<T[]> {
    onChange?: (value: T[], selectedOptions: CascaderOption[]) => void;
}
export default function Cascader<T extends CascaderValue = CascaderValue>(props: CascaderProps<T>): React.JSX.Element;
export declare function MultiCascader<T extends CascaderValue = CascaderValue>(props: MultiCascaderProps<T>): React.JSX.Element;