Visualforce Pages Flashcards

Which Visualforce component is used to add a tab set with multiple tabs to a page?

Answer: and

creates a tab container and defines each individual tab within it.

How does a Visualforce controller extension differ from a custom controller?

Answer: Extensions augment an existing standard or custom controller; custom controllers replace it entirely

A controller extension adds functionality to an existing standard or custom controller, while a custom controller completely replaces the standard controller.

Which approach should be used to expose a Visualforce page to users WITHOUT a Salesforce license (e.g., portal or site users)?

Answer: Enable the page in Sites configuration and grant access to the guest user profile

To expose a Visualforce page publicly, it must be enabled under Salesforce Sites and the guest user profile must have access to the page and its controller.

What does the component do?

Answer: Periodically calls a controller action and refreshes specified components

automatically invokes a controller action at a specified time interval and can reRender parts of the page with updated data.

Which Visualforce expression references the running user's information, such as their name or ID?

Answer: {!$User.Name}

The $User global variable in Visualforce provides access to the running user's fields, such as {!$User.Name} or {!$User.Id}.

What is the effect of setting sidebar="false" on ?

Answer: Hides the left navigation sidebar in Salesforce Classic

Setting sidebar="false" on removes the left-side navigation sidebar in Salesforce Classic for that page.

Which component is used to display read-only field values using standard Salesforce field formatting?

Answer:

displays a field value in read-only mode using the standard Salesforce formatting for that field type (e.g., currency, date, picklist).