Chapter 18
18.1
Fill in the blanks in each of the following statements:
a) Curly ({}) braces indicate data binding.
b) mx is the prefix commonly used to specify the XML namespace of Flex elements.
c) The Application tag is the root tag of an MXML application.
d) A(n) itemRenderer element defines the contents of a HorizontalList.
e) You can change an Application's current State using the currentState property.
f) The Application tag's creationComplete attribute specifies ActionScript to execute when the user interface has finished loading.
g) The content of a DataGrid comes from its dataProvider.
h) An arrayCollection's filterFunction allows you to implement a search feature.
i) Validators are used to make sure that the user's input is in the correct format.
j) The Parallel tag allows you to define a group of effects that occur simultaneously.
k) You can modify an application's look and feel in a CSS-like syntax in the Style tag.
l) A(n) CandlestickChart allows you to chart data points with opening, closing, high and low values.
18.2
State whether each of the following is true or false. If false, explain why.
a) Flex applications can run only on Windows.
False. Flex applications can run on Mac OS X, Windows and Linux.
b) The Flex SDK is available for free.
True.
c) ActionScript 3 executes synchronously.
False. ActionScript 3 is executed in an asynchronous manner.
d) Flex 2 applications need the Flash Player 9 to run.
True.
e) Buttons can execute ActionScript when clicked using the onClick attribute.
False. ActionScript in the click attribute is executed when the user clicks a button.