ViewChanged Event not firing

I have a simple loginview on a webpage.  If a user is logged out they are prompted with a login control.  If they do, I have a label in the LoggedInTemplate with no text value.  I have programmatically set a text value through the ViewChanged Event.   However, when I log in, nothing appears.  It seems to me, that the ViewChanged Event is not firing.  Here is my code: 
Partial Class Default3 Inherits System.Web.UI.Page Protected Sub LoginButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim UserNameTextBox As New TextBox UserNameTextBox = DirectCast(LoginView1.FindControl("TextBox13"), TextBox) Dim PasswordTextBox As New TextBox PasswordTextBox = DirectCast(LoginView1.FindControl("TextBox14"), TextBox) Dim RememberMeCheckBox As New CheckBox RememberMeCheckBox = DirectCast(LoginView1.Find ...