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Hitesh chaudhariHitesh chaudhari 

Can anyone please tell me difference between action function, action pollar, action region, action support

I am new to Salesforce and I am confused between use of following apex concepts
  • Action function
  • Action region
  • Action pollar
  • Action support
  • Action status
it will be great if you provide me differentiate between all of them in short

Thanks in advance


 
Raj VakatiRaj Vakati
apex:ActionFunction : This component helps to envoke AJAX request (Call Controllers method) directly from Javascript method. It must be child of apex:form.
<apex:actionFunction name=”sendEmail” action=”{!sendEmailFunction}”>
</apex:actionFunction>
apex:ActionSupport : This component adds Ajax request to any other Visualforce component. Example : Commandlink button has inbuilt AJAX functionality however few components like OutputPanel does not have inbuilt AJAX capabilities. So with the help of this component, we can enable AJAX.
<apex:outputpanel id=”counter”>
<apex:outputText value=”Click Me!: {!count}”/>
<apex:actionSupport event=”onclick” action=”{!incrementCounter}” rerender=”counter” status=”counterStatus”/>
</apex:outputpanel>
apex:ActionPoller : This is timer component which can send AJAX request on pre-defined interval. Minimum interval is 5 sec and default is 60 sec.
<apex:actionPoller action=”{!incrementCounter}” rerender=”counter” status=”counterStatus” interval=”50″ />


https://www.forcetalks.com/salesforce-topic/difference-between-action-function-action-support-and-action-poller-in-salesforce/
https://www.forcetalks.com/salesforce-topic/difference-between-action-function-action-support-and-action-poller-in-salesforce/
http://www.sfdcpanda.com/difference/
http://salesforcecrm2u.blogspot.com/2014/02/difference-between-action-function.html
https://www.cloudforce4u.com/2013/06/difference-between-action-support-and.html
https://sfdcpanther.wordpress.com/2017/10/04/difference-between-action-function-action-support-and-action-polar/
https://www.cloudforce4u.com/2013/06/difference-between-action-support-and.html