function newClosure(someNum, someRef) {
return function(x) {
showResultsInBrowser(x, someNum);
}
}

function getServerResponses(){
// some other stuff…
var count = aJsVariableSomewhere;
for(var k=1;k<=count;k++){
closure = newClosure(k, {somevar : ‘closure’+k});
remote.method(”response”+k, closure);
}
}

function showResultsInBrowser(serverResponse, index){
// do some UI stuff
}

This approach doesn’t seem to work under pre v3.0 of DWR - I had the same problem - ie undefined index.

After lots & lots of searching I eventually got it working by adapting Example 7 so that it would work from within a loop. (BTW: it also explains why the above approach doesnt work in Example 5)

See: http://blog.morrisjohns.com/javascript_closures_for_dummies.html

I hope someone finds this useful and it saves them some time.

Paul

In the following code, when I give an alert for ‘this.index’, it is displayed as undefined.

Could you please help me.

for(var i=0;i<ids.length;i++) {
var remoteCall = {
index : i,
callback : function(data) {
fillTable(data, ids[this.index]);
}
};
PopulateParameterList.getAjaxPopulateParameterList(paramId,reportId,”",remoteCall);

Thank you