Mater/Detail how get selected row id when checked radio button

[hosnabigdeli]

hi
i have a master detail form and in detail i have several radio button and i want save id row selected. and pass this id to master
Editor.ts
` public radRowSelection: Serenity.GridRadioSelectionMixin;

    constructor(container: JQuery) {
        super(container);
    this.getGrid().onClick.subscribe((e, p) => {
            if ($(e.target).hasClass('rad-select-item')) {
                e.preventDefault();

                var item = this.getView().getItem(p.row);
                var id = item[this.getIdProperty()].toString();



                console.log("a", item);
                console.log("b", id);
              
               	//this.rowSelection.setSelectedKeys(newItems);


            }
       
        });

    }

protected createToolbarExtensions() {
super.createToolbarExtensions();
if (this.changeSelect2) {

        this.radRowSelection = new Serenity.GridRadioSelectionMixin(this);
        }
    }

    protected getButtons() {
        return [{
            title: 'Test Radio Button',
            cssClass: 'send-button',
            onClick: () => {

                Q.warning(this.radRowSelection.getSelectedKey());
            }
        }];
    }


    protected getColumns() {
        var columns = super.getColumns();
        columns.splice(0, 0, Serenity.GridRadioSelectionMixin.createSelectColumn(() => this.radRowSelection));
        return columns;
    }

    protected getIdProperty() {


        return QuestionOptionRow.idProperty;
       


    }

`