Not Updating values when their is a rendering

Question

I have a Vf page with rendering say

 <apex:outputpanel rendered="{!payment.paytype__c==true}">
     //My code goes here
  </apex:outputpanel>

In my class

public list<paypolicy__c> payment{get;set;}
    //constructor
    payid = apexpages().currentpage.getparameters().get('id');
    payment = [select paytype__c from paypolicy__c where id=:payid];
   //save method

    if(payid != null){
        //some code
       update payment;
    }

if (payment.paytype__c==true) this condition becomes true then Update is not working....Help!!!!

Answer 1

I suspect this is because you are using the onclick event - this happens as soon as the user clicks into that element and will fire before the checkbox state is updated.

If you change this to the onchange event, that will fire after the checkbox value has been updated. Note that in some versions of IE the onchange doesn't fire until the element loses focus.