How to remove browser action to repeat handle event earlier?

I have a registration page where I am saving some information. That is running successfully but when I press ctrl +F5 after registration. I get a message by browser to repeat event which is handled earlier. I have done blank all text values and to false viewstate of every control but It is saving 2 times.

Please suggest me. What should I do? Thank开发者_StackOverflows in advance.

The strategy here is to call Response.Redirect("SamePage.aspx").