angular8 - Angular Slick Grid Hierarchy 视图：需要从父行中删除图标

Question

在 Angular Slick Grid Hierarchy 视图中，我实现了添加编辑图标列。现在我需要这些图标只对子行而不是父行可见。我的代码：

 this.columnDefinitions = [
            {
                id: 'edit',
                field: 'id',
                excludeFromColumnPicker: true,
                excludeFromGridMenu: true,
                excludeFromHeaderMenu: true,
                formatter: Formatters.editIcon,
                minWidth: 30,
                maxWidth: 30,
                // use onCellClick OR grid.onClick.subscribe which you can see down below
                onCellClick: (e: Event, args: OnEventArgs) => {
                    console.log("edit clicked");
                    // doing some tasks
                }
            }