Thanks Dominque. I think I have not explained my problem in detail. See, I already developed a application with a dynamic service layer with 15+ layers. Now, user wants to see the tool tip for one of the polygon layers always. How do I go about?. I do not want to add query/identify task and get the features and add as a graphic and display on Map. Is this your solution.
Provide me simple solution which does not hurt existing application design.
Just user wants tool tip (polygon name) on mouse hover. This is a requirement