C# - Button Event Firing / More Redirecting In The File Only This One?

I am using an asp Button the following way:

<asp:Button ID="ButtonSave" runat="server" Text="Save" OnClick="ButtonSave_Click" />
and the code of the handler looks something like this:
protected void ButtonSave_Click(object sender, EventArgs e)
{
Authenticate();
//some other code here
//redirect to certain page here
}

While debugging, I put a breakpoint at Authenticate, but it seems that it doesn't enter the function, although the redirection takes place and i don't do any more redirecting in the file only this one.