export interface IListItem {
    text?: string;
    value?: string;
    icon?: string;
}
export interface IListLayout {
    direction?: GC.Spread.Sheets.LayoutDirection;
    displayAs?: GC.Spread.Sheets.LayoutDisplayAs;
    collapsible?: boolean;
}
export interface IListOption {
    text?: string;
    layout?: IListLayout;
    multiSelect?: boolean;
    valueType?: GC.Spread.Sheets.DropdownListValue;
    items: IListItem[] | IListOption[] | (() => HTMLElement); // a function returns a DOM element
    onItemSelected?: (MouseEvent) => string; // used when items or sub-items is (() => HTMLElement)
}