Show DSRequest.setPrompt("Loading") depending on operation time

Hi Isomorphic

I use DSRequest.setPrompt("Please wait...Loading") message in custom operation call in a listgrid.
I use following code in grid custom operation.

DSRequest dsreq=new DSRequest();
dsreq.setPrompt("Please wait...Loading");
dsreq.setShowPrompt(true); dsreq.setPromptStyle(PromptStyle.DIALOG);


Grid1.getDataSource().performCustomOperation("grid ValueChanged", data,new DSCallback() {

@Override
public void execute(DSResponse response,Object rawData,DSRequest request) {

//---------------Logic after return from server----------//


},dsreq);



I want to show this dialog only when dsRequest takes more than 5 sec time.otherwise it will not prompt anything.

Currently it is showing every time when operation starts whether it is 1 sec or less than one sec.

Is it possible to do in custom operation or any dsRequest. ???


Please help ?

I am using ........

SmartClient Version: v8.3_2012-11-20/PowerEdition Deployment (built 2012-11-20)

Browser...
1. Mozila 25.0.1
2.Chrome Version 34.0.1847.116 m
3. IE 9.0

Window 7 , 64 bit (jdk 1.7.0_45)