cloudanalogy12 (4)

1
A Quick Introduction to VisualForce Pages
TM
2
What are VisualForce Pages?

• VisualForce Page is described as a Salesforce
  Markup language that allows users to create
  interface components in Salesforce.
• The VisualForce pages consist of Salesforce-based
  tags to create interactive and engaging web
  pages. These pages also allow users to integrate
  them with other web languages ??such as HTML,
  CSS, JavaScript, Ajax, and more.

The VisualForce page consists of two parts
VisualForce controller
VisualForce Markup
3

• VisualForce Markup The VisualForce Markup
  Language consists of VisualForce tags, HTML,
  JavaScript, jQuery, CSS, Ajax or any other
  Web-enabled code embedded in Single tag.
• VisualForce Controller The VisualForce
  controller is a single element in VisualForce
  pages that are set to manage data with user
  interactions.

4
Where are these VisualForce pages used?
Developers uses VisualForce pages to

• Override default functionality like New, Edit.
• Override tab overview pages, for example, the
  Accounts
• tab home page
• Specify a custom tab.
• Can be integrated with HTML, CSS, Ajax, jQuery.
• Embed components in detail page layouts.
• Build dashboard components or custom help pages.
• Customize, expand, or integrate the sidebars in
  the
• Salesforce console.
• Add menu items, actions, and mobile cards in
  Salesforce1.

5
VisualForce Tags

• Salesforce-powered tags in VisualForce pages
  always begin with "apex" namespace. These tags
  give you almost all types of Web Markup features
  that you need and are much more similar to the
  built-in ajax components.
• Each VF page consists of ltapex pagegt tags, where
  other rest of the code is defined. You can even
  add JavaScript for client-side data processing.

6
VisualForce Controllers

• The VisualForce Controller describes what data
  and information the user can access that
  comprises almost all the standard objects and
  custom objects and how they are formatted.

Salesforce offers two kinds of controllers
Standard and Custom and they are specified inside
the ltapex page taggt. Standard controllers
provide you the default Salesforce formatting
with all the data validations. On the other hand,
Custom Controllers enable users to define your
own custom formatting, validations, and data
manipulation.
7
VisualForce Controller Extensions

• Just imagine you need to insert a VisualForce
  page on a record detail page button. Then you
  need a standard controller to access the record
  ID, but you also want to filter records based on
  specific criteria that can only be created with
  custom controllers. This is where the VisualForce
  controller extension comes into the picture. The
  VisualForce Controller extension is an Apex class
  that lets you manipulate records while accessing
  standard controller object records.

8
Conclusion

• VisualForce is a component-based user interface
  framework that allows users to create a
  customized and effective web interface.

The framework is a component of Salesforce's
Force.com that is built to streamline the process
of developing and deploying cloud-based
applications and websites. Developers define
VisualForce pages with VisualForce Markup and
VisualForce Controller. The VisualForce Markup
handles what elements or components should appear
on the page and how should they appear.
9
Thank You