Method constructor

packages/sanddance-explorer/src/dialogs/chart.tsx:90–97

(props: Props)

    class __Chart extends base.react.Component<Props, State> {
        private choiceRef?: React.RefObject<FluentUITypes.IChoiceGroup>;
        constructor(props: Props) {
            super(props);
            this.state = {
                showTooltipDialog: false,
            };
            this.choiceRef = base.react.createRef<FluentUITypes.IChoiceGroup>();
            props.explorer.dialogFocusHandler.focus = () => this.choiceRef.current?.focus();
        }

        render() {
            const { props } = this;