Contents
What is render and ReRender in salesforce?
Rendered-This attribute is used to display a particular filed or section based on boolean value. ReRender- This is to reload some fields, or sections after some operation. Advantage of it is that the whole page is not refreshed and only a portion(the one which is ReRendered) is refreshed.
What is the difference between actionSupport and Actionfunction?
A component that provides support for invoking controller action methods directly from JavaScript code using an AJAX request. In Simple difference, Action support adds AJAX support to another visualforce component and then call the controller method. …
What is salesforce Actionpoller?
A timer that sends an AJAX request to the server according to a time interval that you specify. Each request can result in a full or partial page update.
How to use apex actionregion in Salesforce?
Only the components in the body of the are processed by the server, thereby increasing the performance of the page. Use this component to get user input for a controller method that does not correspond to a field on an sObject.
What is the default value for action in apex?
If set to true, the action happens immediately and validation rules are skipped. If not specified, this value defaults to false. A Boolean value that specifies whether the component is rendered on the page.
What is the difference between rendered and rerender in JavaScript?
Praveen Murugesan. 1. Rendered : It use to place condition for a component (Field, outptpanel, section etc), that will show or not on page. 2. ReRender : It is use after a ajax call, Is comonent will again check condition for that component.
Can a sobject field be used in apex?
Only and apex:outfield can be used with sObject fields. Note that an component only defines which components the server processes during a request—it doesn’t define what areas of the page are re-rendered when the request completes.