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How do you call a child component from Parent component in aura?
To call a method of Child Component from Parent, we need to make use of . executes in a Synchronous manner and hence it is easy to return a value from . But if we are handling Asynchronous code in , it becomes a little tricky.
How call child component controller method from Parent component controller?
Step1: – Call the child component inside the parent component using the syntax like below and use aura:id for the child component which will let you find the child component and then you can call the controller method. :childComponent aura:id=’childCmp’ /> – Use this Syntax if no namespace is defined by you.
How do you call a child component method from Parent lightning?
Define aura:id of the child component in parent. Define in child component and it will link to method of child controller. Define a lightning:button on parent component and on click of this button get the reference of the child component as mentioned in step 1 and call aura:method as mentioned in step 2.
How to use aura method in child component?
Now in child component we are declaring aura:attribute of type Aura.Component, so we can store parent component reference. Also added button for calling child component controller method. Similarly, in ChildComponentController, we have to get the parent component and calling it’s aura method.
How to call child component from parent controller?
Using , I am not able to call child component controller function from parent controller. Below code. Now getting the error [childComponent.getScoreMethod is not a function]. What is wrong here ?
How to call a method on a child component?
Using Aura:Method Use to define a method as part of a component’s API. This enables you to directly call a method in a component’s client-side controller instead of firing and handling a component event. Using simplifies the code needed for a parent component to call a method on a child component that it contains.
When to call child component in Lightning aura?
In this case, if Parent component is firing bubble phase then it can handle that or component above it in the hierarchy can handle that. Child component never comes on the route. If Parent component fires capture phase then event starts from application root and only goes down till component which fired that event i.e parent component.