Get return value of dwr function within the located function

Question

I want get the return value of dwr method within the located function.Ie, I have a javascript function name checkvalue().Within that I have a DWR call.I want the value returned by the DWR method.I have set the value to a hidden variable.But it cannot get properly.How can I do that?Please help me.

Thank you

<script type="text/javascript">
   function checkvalue(applNo){
     classDAO.getstatusofApplication(applNo,getstatusofApp); 
     var status=document.getElementById("hiddenfield").value;
   }

   function getstatusofApp(status){  
     document.getElementById("hiddenfield").value=status;   
    }
</script>

In the above example I set the dwr return value 'status' to a hidden field and call the hidden field within the checkvalue method.But it shows null.

Answer 1

I think in your code the line

var status=document.getElementById("hiddenfield").value;

gets executed before the function getstatusofApp is being called. try logging in console the steps the code is executed.

So what you really should do is-

function checkvalue(applNo){
   classDAO.getstatusofApplication(applNo, function(status){
      getstatusofApp(status);
      alert(status);
      // here you have the status value you need not have 
      // to read it from hidden variable
   }); 
}