If I understand your question well,
You can do it this way -
Have a single button, say 'Save'. Attach a click event to the button. On the server side, save the required information in this event and then navigate to the required page using
Server.Transfer
or
Resposne.Redirect
(if you need to navigate to another website).
The code will be something like this -
<asp:Button ID="btnSave" runat="server" Text="Submit" OnClick="btnSubmit_Click" />
protected void btnSave_Click(object sender, EventArgs e)
{
Server.Transfer("Test2.aspx");
}
Hope this helps!