Link to reset a password

'Hello

I am hoping to send a link to a user who has forgotten his password. The page is online here:

www.dimadayoub.net/forgot.aspx

The code I am using (which is followed by SMTP), is as follows:

Code:

Protected Sub btnForgot_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnForgot.Click

Const ConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|students.mdb;"

Dim uniqueCode As String = Guid.NewGuid().ToString("N")

Dim recordExists As Boolean = False

Using conn As New OleDbConnection(ConnectionString)

Using cmd As OleDbCommand = conn.CreateCommand()

cmd.CommandText = "UPDATE university SET uniqueCode = @uniqueCode WHERE strEmail = @strEmail"

cmd.Parameters.AddWithValue("@uniqueCode", uniqueCode)

cmd.Parameters.AddWithValue("@strEmail", strEmailTextBox.Text.Trim())

conn.Open()

Dim recordsAffected As Integer = cmd.ExecuteNonQuery()

If recordsAffected <> 0 Then recordExists = True

End Using

End Using

If recordExists Then

Dim builder As New UriBuilder(Request.Url)

builder.Path = VirtualPathUtility.ToAbsolute("~/resetPwd.aspx")

builder.Query = "uniqueCode=" & HttpUtility.UrlEncode(uniqueCode)

Dim link As String = builder.Uri.ToString()

I take it that the 'uniqueCode' is the link? If so, where does it come from, please? It is normally a link that the user clicks on and is taken to a password reset page ('resetPwd.aspx' in my case), but what generates the link?

Thank you.

Steve