Can you create a Visualforce page with more than one extension?

Can you create a Visualforce page with more than one extension?

When talking to another developer today we came across a question that we can’t find the answer to so I was hoping someone here knew the answer. I know that you can create a visualforce page with more than one extension. My questions are: 1. Why would you use more than one? 2.

How to get the instance URL for a Visualforce page?

I have a VisualForce page with a link: Soon we are migrating from na1 to another instance and would like to know how to automatically retrieve the Salesforce Instance to do the same changes in all the visualforce pages. I have tried to use relative links as in any custom link:

How to build a controller extension in Visualforce?

Building a Controller Extension. Because this extension works in conjunction with the Account standard controller, the standard controller methods are also available. For example, the value attribute in the tag retrieves the name of the account using standard controller functionality.

How is the Order of execution of a Visualforce page determined?

To fully understand the order of execution of elements on a Visualforce page, you must first understand the page’s lifecycle –that is, how the page is created and destroyed during the course of a user session. The lifecycle of a page is determined not just by the content of the page, but also by how the page was requested.

When do you call action method in Visualforce?

Action methods perform logic or navigation when a page event occurs, such as when a user clicks a button, or hovers over an area of the page. Action methods can be called from page markup by using {! } notation in the action parameter of one of the following tags:

How many times can a setter method be called in Visualforce?

Visualforce doesn’t define the order in which setter methods are called, or how many times they might be called in the course of processing a request. Design your setter methods to produce the same outcome, whether they are called once or multiple times for a single page request.

How is the save method called in Visualforce?

Action methods can be called from page markup by using {! } notation in the action parameter of one of the following tags: For example, in the sample page in Build a Custom Controller, the controller’s save method is called by the action parameter of the tag.

How to overriding tabs with a Visualforce page?

When overriding tabs with a Visualforce page, you can select only Visualforce pages that use the standard list controller for that tab’s associated object, pages with a custom controller, or pages with no controller. When overriding lists with a Visualforce page, you can select only Visualforce pages that use a standard list controller.

How to override buttons in Salesforce mobile app?

When a Salesforce mobile app user clicks New to create a product, the user must select a record type even if the Skip record type selection page option is selected in Setup. Use a controller extension to add extra functionality to Visualforce page that you’re using as an override.