import { FieldDefine, SearchDefine } from '../define';
import { NumberFormatOptions } from '@progress/kendo-angular-intl';
export declare class Util {
    static fileFieldName(fieldName: string): string;
    static complexFieldName(fieldName: string): string;
    static toDatetime(dateTime: string): Date;
    static objectAssign(target: any, source: any): any;
    static stringFormat(input: string, ...args: any[]): string;
    static createNumberFormat(decimal: any): string | NumberFormatOptions;
    static numberFormat(x: number, decimal?: number | string): string;
    static expandTreeListValues(list: any[], root?: boolean): {
        [key: string]: any;
    }[];
    static toKendoListValues(list: any[][], caller?: any): {
        [key: string]: any;
    }[];
    /**
     * Return null if does not have list param
     * If list param is array, return the array of param's values.
     * If param value is null, replaced by -1
     */
    static getListOptionsParams(define: FieldDefine, record: {
        [key: string]: any;
    }, value?: any, fieldName?: any): any;
    static getListOptionsKey(define: FieldDefine, record: {
        [key: string]: any;
    }, value?: any, fieldName?: any): string;
    static compare(a: any, b: any): boolean;
    static searchCacheHasValue(searchCache: SearchDefine): boolean;
    static searchCacheActive(searchCache: SearchDefine): boolean;
    static toUnixTimestamp(d: string): number;
    static toHumanDatetime(timestamp: any): Date;
}