ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with XML
To access a specific grandchild, you can specify index numbers for both the child and grandchild names:
myXML.book[0].title[0]
However, if there is only one child of x.book[0] that has the name title, you can omit the index reference, as follows:
myXML.book[0].title
Similarly, if there is only one book child of the object x, and if that child object has only one title object, you can omit
both index references, like this:
myXML.book.title
You can use the child() method to navigate to children with names based on a variable or expression, as the following
example shows:
var myXML:XML =
Dictionary
;
var childName:String = "book";
trace(myXML.child(childName).title) // output: Dictionary
Accessing attributes
Flash Player 9 and later, Adobe AIR 1.0 and later
Use the @ symbol (the attribute identifier operator) to access attributes in an XML or XMLList object, as shown in the
following code:
var employee:XML =
Wu
Erin
;
trace(employee.@id); // 6401
You can use the * wildcard symbol with the @ symbol to access all attributes of an XML or XMLList object, as in the
following code:
var employee:XML =
Wu
Erin
;
trace(employee.@*.toXMLString());
// 6401
// 233
You can use the attribute() or attributes() method to access a specific attribute or all attributes of an XML or
XMLList object, as in the following code:
Last updated 6/6/2012
107