Changed text not posting back to code-behind
<p>I have a textbox on an ASP.NET 4.0 page.  I can add text to the textbox in the code-behind and when the page renders, the text displays just fine.  However, when I modify the textbox in the browser and submit the page, the MyTextBox.Text property still shows the original text and not the modifed text I entered in the browser.  How can the code-behind show the modified text?</p>
