Display Message On Visualforce
Whenever we want to display a message on a page, we can use a <
tag. Here below is the example code:apex:pageMessage>
<apex:page controller="MyController">
<apex:pageMessage severity="Error" summary="First
Error message on page" strength="1"></apex:pageMessage>
<apex:pageMessage severity="Error" detail="Second Error message on page" strength="2"></apex:pageMessage>
<apex:pageMessages ></apex:pageMessages>
</apex:page>
Here is the example of controller which can be defined to add message to the page:
public class theController {
public theController(){
ApexPages.addmessage(new ApexPages.message( ApexPages.severity.Error, 'First Error Message added from apex'));
ApexPages.addmessage(new ApexPages.message( ApexPages.severity.Error, 'Second Error Message added from apex'));
}
}
