display loading symbol in vb.net

Question

 Hai ,

                        I have created one vb.net application.In that app i have pulled the data from asp.net through  webservice.

                        so  I call the web service method when the user click the save button.But  it take long time to retrieve the data.

                        so now I want to display some loading symbol or image until the data is retrieved.

                        How I can do that?