Open files when click on anchor tag

<a href='<%# String.Format("{0}",DisplayPath(DataBinder.Eval(Container.DataItem, "Path" ).ToString())) %>' target="_blank" title=''>Click here... </a>
When I click on anchor tag new window opening with path given in href,but I could view this file when I refresh the page.
So how to open file in new window without refreshing the page.