Raises the System.Windows.Forms.RadioButton.CheckedChanged event, if the System.Windows.Forms.RadioButton.Checked property has changed on postback.
The RadioButton.RaisePostDataChangedEvent method is called by the System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent method. It is used primarily by control developers extending the functionality of the System.Web.UI.WebControls.RadioButton control.