Busy Dialog Not Showing Immediately

Hi all,

I have a tree node in my application. If i select that tree node i want to show a busy dialog and then that particular page should render.

For that i have written the code as

onTreeSelect: function() {

var oBusyIndicator = new sap.m.BusyDialog({text: "Loading..."});

oBusyIndicator.open();

here comes my ajax call......

oBusyIndicator.close();

oSplitApp.toDetail("myView");

},

The busy indicator is not showing immediately when i click on that tree node. It takes some time to open the busy indicator.

But when i debug and see it is opening properly.

How can i overcome this.

Please help me on this.

Thanks

Sathish.