The following is code from a web form that was created to show the problem.
The problem is that the textbox (TextBox1) that was placed on the form
explicitly persists.  The other textbox (TextBox2), the one that created on
the fly, does not persist from one load of the page to the next.  How can I
get either:

1.  TextBox2 to persist, or

2.  Bbe able to access the value from the page just before going to the
next instance of the page, in which the former instance of TextBox2 is
entirely lost, but I don't care because I have the value of the contents.

tlp

Public Class Test

    Inherits System.Web.UI.Page

#Region " Web Form Designer Generated Code "

    'This call is required by the Web Form Designer.

    <System.Diagnostics.De{*filter*}StepThrough()> Private Sub
InitializeComponent()

    End Sub

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Init

        'CODEGEN: This method call is required by the Web Form Designer

        'Do not modify it using the code editor.

        InitializeComponent()

    End Sub

    Protected WithEvents Button1 As System.Web.UI.WebControls.Button

    Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox

    Protected WithEvents Panel1 As System.Web.UI.WebControls.Panel

#End Region

    Dim TextBox2 As System.Web.UI.WebControls.TextBox

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load

        If Not Page.IsPostBack Then

            TextBox2 = New System.Web.UI.WebControls.TextBox()

            TextBox2.Text = "Before"

            Panel1.Controls.Add(TextBox2)

        End If

    End Sub

End Class

or what is the mechanism the user is using to get to the next page?  A link,
a form post, or ???

If it is a form post, make that text box part of the form and post the data.

Scott Emick