hi I am working with Visual Studios C# ASP.NET. I am having problems with one of the buttons. I am trying to run a method when the button is clicked which is store the typed data on access. I have double clicked the button and on the .cs page have got Connection.SaveUser(); inside the button_click method. However I keep getting error when I run the programme.

The error basicly says "'ASP.default_aspx' does not contain a definition for 'Button3_Click' and no extension method 'Button3_Click' accepting a ..". The code on the source page is this
<asp:Button ID="Button3" runat="server" Text="Register" Width="122px"
onclick="Button3_Click" />
which as far as I know is fine.
One of my other buttons which redirects to another page works fine.