[Vuejs]-Pass boolean value to open a section from child to parent

As you indicate, it is your child who owns the section to be displayed. So no need to create an event to warn the parent. I’ve created a very simple example that should help you a lot: https://codesandbox.io/s/vuejs-open-sectioncomponent-by-clicking-on-button-4y1f5, where App.vue is the parent, HelloWorld.vue the child and superSction.vue the section that will be print by clicking on Profile Button in the child.