I'm seeing multiple errors with the code for Chapter 7. It doesn't match the text in the book 100% as well. Example - page 148. Book has an xmlns:filters namespace, code doesn't. Running the code with or without that namespace gives an error when clicking OUT of the textbox to try and edit another value:

ReferenceError: Error #1069: Property selectedDate not found on mx.controls.TextInput and there is no default value.
    at mx.controls::DataGrid/::itemEditorItemEditEndHandler()
    at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunctio n()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.core::UIComponent/dispatchEvent()
    at mx.controls::DataGrid/::endEdit()
    at mx.controls::DataGrid/::deactivateHandler()
    at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunctio n()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.core::UIComponent/dispatchEvent()
    at mx.controls::DataGrid/::endEdit()