Visualforce Pages Flashcards

Which component renders an input field appropriate for the data type of a Salesforce field?

Answer:

automatically renders the correct input type based on the field's metadata and data type.

What does the 'rendered' attribute do on a Visualforce component?

Answer: Determines if the component is included in the DOM

The rendered attribute (boolean) determines whether the component is included in the page DOM — when false, it is not rendered at all.

Which Visualforce tag is used to define an area that can be partially refreshed via AJAX?

Answer:

with layout="block" can be targeted by reRender attributes for partial page AJAX refreshes.

What is the purpose of ?

Answer: Defines a JavaScript function that calls a controller action remotely

creates a JavaScript function that can invoke a controller method via AJAX from client-side JavaScript.

Which attribute on specifies which panel(s) to refresh after the action completes?

Answer: reRender

The reRender attribute specifies the id(s) of components to refresh via AJAX after the button's action executes.

Which Visualforce component allows you to include another Visualforce page within the current page?

Answer:

embeds the output of another Visualforce page into the current page at render time.

What is the view state size limit for a Visualforce page?

Answer: 170 KB

Visualforce pages have a maximum view state size of 170 KB, which stores the state of the page between requests.