login view controls

how do u change the text in a control in the logedin view?

<asp:LoginViewID="LoginView1"runat="server">

<LoggedInTemplate>

<asp:TextBoxID="hiddenTxtBox"runat="server"></asp:TextBox>

</LoggedInTemplate></asp:LoginView>

it can not see the control in side, but out side the login view it can?

 like this?

<asp:LoginViewID="LoginView1"runat="server">

<LoggedInTemplate>

</LoggedInTemplate></asp:LoginView>

<asp:TextBoxID="hiddenTxtBox"runat="server"></asp:TextBox>