import { CommandHost, CommandInfo } from "narik-infrastructure";
import { EventEmitter, Injector } from "@angular/core";
import { Observable } from "rxjs/internal/Observable";
import { NarikUiComponent } from "../base/narik-ui-component";
export declare abstract class NarikTreeview extends NarikUiComponent implements CommandHost {
    change: Observable<any>;
    _selectedNode: any;
    selectedNode: any;
    selectedNodeChange: EventEmitter<any>;
    toolbarKey: string;
    _dataSource: any;
    dataSource: any;
    /**
     *
     */
    constructor(injector: Injector);
    processCommand(cmd: CommandInfo): void;
    abstract addNode(selectedNode: any): any;
    abstract deleteNode(selectedNode: any): any;
    dataSourceChanged(): void;
}