How to bind grid view or repeater control without post back

I am saving data through a web method in asp.net C# and want to display that data in the grid view as soon as it gets inserted into the database. Without any postback. On the success of saving data is it possible to refresh the page or to have some javascript post back so the page gets refresh & Gridview rows get populated with the saved data.

Thanks in advance  it is v. important for me-please help