Sample Code: Visualforce page: <apex:page controller="sample"> <apex:commandButton value="Open" action="{!openPage}"/> </apex:page> Apex Class: public class sample{ public pageReference openPage() { pageReference pg = new pageReference('/apex/Name_Of_The_Page'); pg.setRedirect(true); return pg; } }
Sample Trigger for Email alert on creation of User: trigger welcomeUser on User ( after insert ) { List < Messaging.SingleEmailMessage > mails = newMessaging.SingleEmailMessage(); for ( user u:trigger.new ) { ....
Sample Code: Visualforce page: <apex:page controller="sample"> <!-- Calling Controller Method from Visualforce page --> <!-- Javascript --> <script type="text/javascript"> function jsfind() { callfind(); } </script> <apex:pagemessages /> ....
rendered - Boolean value (if it is true, it displays the block else it will be hidden) Example - https://infallibletechie.com/2014/02/conditional-rendered-with-list-size.html reRender - ID. The particular block will be refreshed. Example - https://infallibletechie.com/2013/04/how-to-rerender-multiple-sections-in.html renderAs ....
To display error messages in the Visualforce page add below tag where you want to display the error message. Visualforce page: <apex:pageMessages /> Apex Controller: ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Error ....
Dynamic Apex allows to create more flexible applications by providing them with the ability to: Access sObject and field describe information Describe information provides information about sObject and field properties. ....
If Extensions are having same method name, it gets overridden. Overrides are defined by whichever methods are defined in the “leftmost” extension, or, the extension that is first ....
The view state of a web page is composed of all the data that's necessary to maintain the state of the controller during server requests (like sending or receiving ....
In Salesforce component is a reusable piece of code developed using Visual force and Apex controller. Example: <!-- Page --> <apex:page> <c:myComponent myValue="My component's value" borderColor="red" /> </apex:page> <!-- ....
Set: A set is an unordered collection of primitives or sObjects that do not contain any duplicate elements. Map: A map is a collection of key-value pairs where ....