Wednesday, July 30, 2014

Visualforce Action Function Example.

Visualforce Action Function Example.


Hi, 
In this post i am giving an example of simple usage of <apex:actionFunction> tag in visualforce page to call a apex method from Java script.

Controller Class:


public class ActionFunctionCLS {
  public Account actObj{get;set;}
   PageReference prf= null;
    public ActionFunctionCLS(){
      actObj = new Account();
    }
 
   
    public pagereference Saverec(){
   if(actobj.Name !=''){
    insert actobj;
   
   }
   else{
     ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Error: Please Enter Name.');
     ApexPages.addMessage(myMsg);
   
   }
   if(actobj.id !=null){
  
      // Send the user to the detail page for the new account.
      prf = new PageReference('/'+actobj.id);
      prf.setRedirect(true);
   
   }
   return prf;
    }

}


Visualforce Page:

<apex:page controller="ActionFunctionCLS" id="pg" >
  <script>
   function recSave(){
    var accountType = document.getElementById('pg:fm:pb:pbs:actType').value;
    alert('accountType -->'+accountType);
    if(accountType != 'Prospect'){
     alert('You Should Select Prospect to Save the Record');
     return false;
    }
    else{
     saveAccount(); //this is the function name which calls our action function from java Script.
     return true;
    }
   }
 
  </script> 

 <apex:form id="fm">
  <apex:actionfunction name="saveAccount" action="{!Saverec}" />
   <apex:pageBlock id="pb">
     <apex:pagemessages ></apex:pagemessages>
     <apex:pageblockButtons >
      <apex:commandButton value="Save" onclick="recSave();return false;"/>    
     </apex:pageblockButtons>
    
     <apex:pageblockSection id="pbs">
       <apex:inputField value="{!actobj.Name}" id="actName"/>
       <apex:inputField value="{!actobj.type}" id="actType"/>
     </apex:pageblockSection>
   </apex:pageBlock>
 </apex:form>
</apex:page>





              




Once you select Account Type as "Prospect" Javascript method will call the <apex:actionfunction name="saveAccount" action="{!Saverec}" /> and controller method is going to execute.



That's it..


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