import * as React from 'react';
interface IMDPickerProps {
    itemHeight?: number;
    pickerWidth: number;
    pickerHeight: number;
    onPickerSelected?: (columnIndex: number) => void;
    defaultIndex?: number[];
    defaultValue?: string[];
    invalidIndex?: number[][];
    data: any[][];
    cols?: number;
    isCascade?: boolean;
}
export interface IMDItemModel {
    label: string;
    value: string;
    children?: IMDItemModel[];
}
interface IMDPickerState {
    columns: any[];
    activeIndexs: number[];
}
export default class Picker extends React.Component<IMDPickerProps, IMDPickerState> {
    static defaultProps: {
        itemHeight: number;
        pickerHeight: number;
    };
    constructor(props: IMDPickerProps);
    private activeIndexs;
    private activeValues;
    private columnValues;
    componentWillReceiveProps(nextProps: IMDPickerProps): void;
    componentWillMount(): void;
    componentDidMount(): void;
    render(): JSX.Element;
    setColumnValues(index: number, values: any[]): void;
    getActiveValues(): any[];
    getActiveIndexs(): number[];
    private renderColumns;
    private cascadePicker;
    private initColumnValues;
    private initActiveIndexsByNextProps;
    private initActiveIndexs;
    private getIndexsByDefaultValues;
    private setupStateColumns;
    private updateActiveIndexs;
    private initActiveValues;
    private setBehindActiveValues;
    private updateActiveValues;
    private onSeleted;
    private getInvalidIndexs;
}
export {};