Multiple choice .net asp Which of the following is true? IsPostBack is a method of System.UI.Web.Page class IsPostBack is a method of System.Web.UI.Page class IsPostBack is a readonly property of System.Web.UI.Page class Reveal answer Fill a bubble to check yourself C Correct answer Explanation IsPostBack is a property of the System.Web.UI.Page class that returns a boolean value indicating whether the page is being loaded in response to a client postback or if it is being loaded for the first time. It is a property, not a method.