Getting the raw HTML from a web control

Option Strict On
Option Explicit On

Imports System
Imports System.Drawing
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.IO

Public Class App1 
    Shared Sub Main()
        Dim ctl As TextBox = New TextBox()
        ctl.BackColor = Color.Red
        ctl.Height = New Unit(200)
        Dim sw As StringWriter = New StringWriter()
        ctl.RenderControl(New HtmlTextWriter(sw))
        Console.WriteLine(sw.ToString())
    End Sub
End Class

When run, you should get the following output in the console window:

<INPUT style="HEIGHT: 200px; BACKGROUND-COLOR: red">