Visualforce is a Component framework hosted natively on salesforce.com. This presentation aims at giving a Intro to the technology. The presentation is part of the Force.com Friday webinar series by salesforce.com . You can sign up for more sessions like this : https://developer.salesforce.com/events/webinars/forcedotcomfridayreg?d=70130000000sxxh This webinar was presented by Shivanath Devinarayanan

1. Intro to Visualforce
November 7, 2014

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3. Shivanath Devinarayanan
Salesforce & Force.com MVP
@shivanathd
Speaker

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5. What can you do with Visualforce?
 Framework to build custom user
interfaces
 Hosted natively on Force.com
 Build streamlined UX
 Create internal and public facing pages
 Customize for different devices
 Leverage other web technologies

6. Model View Controller (MVC) Pattern
Standard and
Custom Object
Visualforce
Standard Controllers
and Apex

7. MVC example

8. What do standard components look like?
apex: or chatter:
prefix
Attributes to define
component
Merge field to define
attribute (can also be a
string literal in some
cases)
<apex:outputField value = “{!Restaurant__c.Address__c}” >
Reference field
(using dot notation)
Data binding to objects
and class variables
Component name (examples:
tables, repeats, forms, etc)

9. What do standard components look like?
Standard or
custom objects
Defined at
the page
level
<apex:page standardConroller =“Restaurant__c” extensions =“ext1, ext2” >
Custom controller
logic to extend
standard controllers
Inherit standard CRUD
functionality.
If only using custom controllers,
use controller=“controllerName”

10. MVC example
 Visualforce tags
– 100+ standard components
– Custom components
 Works with all standard web
technologies including:
– CSS
– JavaScript
– HTML
– Flash
– Any other Web-Enabled Code

11. Visualforce Controllers
 Provides access to data
 Logic for handling UI interaction
 Standard Controllers
– Same functionality as standard
pages
• Save, delete, field access etc.
 Custom Controllers
– Written in Apex
– Override standard behavior
– Controller Extensions

12. How can I customize Visualforce?

13. The Developer Console

14. What else can you
do with Visualforce?
Name
Title
@Twitter

15. Rich user interfaces

16. Complete web apps

17. Mashups

18. Complete web apps

19. But…
 Visualforce is NOT your first line of defense
 Working knowledge of HTML, CSS, and JavaScript is
essential
 Visualforce has limits

20. Limits
 Page Size: 15 MB
 Viewstate Size 135 KB

21. If nothing else, remember this…
 Visualforce is powerful – use it judiciously
 If you don’t know basic HTML, CSS, and JavaScript concepts, no amount of Visualforce
magic will help you
 Pay attention to performance at all times
 If you don’t know… ASK
http://developer.force.com | Boards | Visualforce | #askforce

22. If nothing else, remember this…
 Developer.force.com
 Bit.ly/IntroVF-pkg
 Bit.ly/visualforce-workbook
 Advanced Visualforce Webinar
DF Recorded Sessions
 “7 Habits of Highly Efficient Visualforce Pages”
 “Building the New AppExchange Using Responsive Design”

23. Q & A

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