How to create dynamic aura ID in Lightning?
dynamic aura:id attribute for Lightning Components. Simple suggestion: make aura:id be able to be dynamic – such as parsing expressions – instead of having to be a litteral string. The result of the iteration loop would be five input fields with unique aura:id attributes equal to index1,index2, index3, index4, index5.
How to create and destroy Lightning components dynamically?
Sometimes it is required to create the lightning component at runtime and destroy them. In order to instantiate any lightning component dynamically in the client-side JavaScript code, use $A.createComponent () and to create multiple components, use $A.createComponents ().
How to create a lightning component in MST?
$A.createComponent (String type, Object attributes, function callback) type (String) : Type of component to create , ex: lightning:button. Attributes : Map of all parameters required for new component, including the local Id (aura:id). Callback (cmp, status, errorMessage): Callback is used to invoke after a component is created.
How to dynamically change attribute value from lightning controller?
Created a lightning button in the component definition whose action in the controller will change the ‘src’ attribute value to a different image. However, I am getting the below error in the console when the button is clicked and the image is not getting changed to a new one. Am I missing something here ?
Is there a limit on component creation in Lightning aura?
There’s no limit on component creation on the client side. Creating components where the top-level components don’t have server dependencies but nested inner components do have dependencies isn’t currently supported. type —The type of component to create; for example, “lightning:button”.
What happens when CMP is null in Lightning aura?
This parameter enables you to do something with the new component, such as add it to the body of the component that creates it. If there’s an error, cmp is null.
How to set aura id attribute in JS?
Then the JS controller could access the components either directly using component.find (“index1”).get (“v.value”) or in a loop along the lines of Dynamiclly creating componets solves the aura:id issue (you can set it via JS for loop), but dynamically-created components can’t be found using component.find (id).get (…) method.