The FormControlBuilder class is used internally by ASP.NET. It is created by the page parser when it encounters a <mobile:Form> tag, and used to process the literal text it contains.
public class FormControlBuilder : LiteralTextContainerControlBuilder { // Public Constructors public FormControlBuilder( ); // Public Instance Methods public override void AppendSubBuilder(System.Web.UI.ControlBuilder subBuilder); // overrides LiteralTextContainerControlBuilder }