Apex Dynamic Component Tag
Question
This tag acts as a placeholder for your dynamic Apex components.
It has one required parametercomponent Valuewhich accepts the name of an Apex method that returns a dynamic component.
The following Visualforce components do not have dynamic Apex representations: <apex:actionRegion> <apex:attribute> <apex:component> <apex:componentBody> <apex:composition> <apex:define> <apex:dynamicComponent> <apex:flash> <apex:inputFile> <apex:include> <apex:insert> <apex:pageMessage> <apex:pageMessages> <apex:variable> <apex:vote> Any non-<apex:> tag, like <chatter:>, <flow:>, <ideas:>, <knowledge:>, <messaging:>, or <site:>
Answers
Explanations
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A. B. C. D.A.
The correct answer is A. apex:dynamicComponent.
The apex:dynamicComponent tag is used to dynamically create Visualforce components based on a specified Apex method. It is a placeholder tag that is used in place of the actual component. The Apex method must return a component that is compatible with the apex:dynamicComponent tag.
The tag has one required parameter, "componentValue," which accepts the name of an Apex method that returns a dynamic component. The dynamic component is created at runtime and is based on the parameters passed to the method.
The other tags listed in the question do not have dynamic Apex representations. For example, the apex:component tag is used to define a reusable component that can be used throughout an application. It is not used to dynamically create components at runtime.
The apex:actionRegion tag is used to define a region of a Visualforce page that is updated by a specific action, such as a button click. The apex:attribute tag is used to define a custom attribute for a Visualforce component. The apex:insert tag is used to insert a Visualforce component into a specified location in another component.
Overall, the apex:dynamicComponent tag is a powerful tool for creating dynamic Visualforce components based on user input or other runtime conditions. It can be used in a wide range of scenarios, from simple forms to complex UIs.
