Contents
How to create a controller extension in Salesforce?
To create your controller extension class, from Setup, enter Apex Classes in the Quick Find box, then select Apex Classes. // If we’re operating inside a tab running inside of a profile… To create your page, from Setup, enter Visualforce Pages in the Quick Find box, then select Visualforce Pages.
How to use a custom controller in Visualforce?
Visualforce Controllers Using custom controllers in vf page Standard List Controllers Custom Controllers & Controller Extensions What are the different Visualforce Controllers Overriding Standard button Creating simple VF page Add multiple records CSS & Javascript example Visualforce Picklist example apex:selectList with standard list Controller
How are sobjects set in a Visualforce controller?
If a Visualforce component is bound to an sObject that is stored in a controller, the sObject’s fields are automatically set if changed by the user, as long as the sObject is saved or updated by a corresponding action method. An example of this behavior is shown in the sample page in Build a Custom Controller.
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.
Which is an example of a controller extension?
A controller extension is any Apex class containing a constructor that takes a single argument of type ApexPages.StandardController or CustomControllerName, where CustomControllerName is the name of a custom controller you want to extend. The following class is a simple example of a controller extension:
Can a getter and setter work with any object?
In fact, your getters and setters can work with any object and your Visualforce page automatically has access to all of the instance attributes and action methods on that object. Getters and setters seem simple, but the previous example really seems like a lot of code to just allow our Visualforce page to work with a single object.
What’s the shortcut for getters and setters in apex?
This is why Apex also includes a shortcut for getters and setters called properties. A property combines the instance of our variable with the getter and setter methods and greatly reduces the amount of code you need to write. Take a look at the property equivalent to the previous code block: