import { SpreadsheetActivePaneChangedEventArgs as SpreadsheetActivePaneChangedEventArgs_internal } from "./SpreadsheetActivePaneChangedEventArgs";
import { ContentChildrenManager } from "igniteui-react-core";
import { SpreadsheetPane } from "./SpreadsheetPane";
/**
 * Event arguments for the
 * activePaneChanged event.
*/
export declare class IgrSpreadsheetActivePaneChangedEventArgs {
    protected _implementation: any;
    protected mounted: boolean;
    get nativeElement(): HTMLElement;
    /**
     * @hidden
     */
    get i(): SpreadsheetActivePaneChangedEventArgs_internal;
    protected onImplementationCreated(): void;
    protected _contentChildrenManager: ContentChildrenManager;
    constructor();
    protected _provideImplementation(i: any): void;
    /**
     * Returns the new value of the
     * activePane
    */
    get newValue(): SpreadsheetPane;
    /**
     * Returns the previous value of the
     * activePane
    */
    get oldValue(): SpreadsheetPane;
}