в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

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2010-05-26T08:14:37Z

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==Accessing Values with E4X: Using the Dot Operator to Access Elements==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var movieList:XML = <movieList>
<listName>My favorite movies</listName>
<movie id="123">
<title>Titus</title>
<year>1999</year>
<director>J T</director>
</movie>
<movie id="456">
<title>Rushmore</title>
<year>1998</year>
<director>W A</director>
</movie>
<movie id="789">
<title>Hall</title>
<year>1977</year>
<director>Woody Allen</director>
</movie>
</movieList>;

trace(movieList.listName); // Displays : My favorite movies

trace(movieList.movie[1]);

trace(movieList.movie[0].title);
trace(movieList.movie[2].director);
}
}
}
</source>

==Adding Text Nodes to an XML Object==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:XML = <example/>;

example.firstname = "Darron";
// Create a text node from a number
example.number = 24.9;
// Create a text node from a boolean
example.boolean = true;

// Create a text node from an array
example.abc = ["a", undefined, "b", "c", null, 7, false];

trace( example );
}
}
}
</source>

==Bracket syntax is required for illegal property name==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:XML = <example />;

example[ "some-element" ] = "";

trace( example );
}
}
}
</source>

==Build a property name and, consequently, an element name, dynamically==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:XML = <example />;

var id:int = 10;

// Create a string to incorporate the value of id in the node name
example[ "user" + id ] = "";

trace( example );
}
}
}
</source>

==Use a variable"s value as the element name to find:==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var nodeName:String = "color";
var fruit:XML = <fruit><color>red</color></fruit>;
trace( fruit[nodeName] );
}
}
}
</source>

==Use bracket notation, coupled with an integer, to access a particular element node==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var items:XML = <items>
<item>
<name>Apple</name>
<color>red</color>
</item>
<item>
<name>Orange</name>
<color>orange</color>
</item>
</items>;

trace( items.item[0].name );

trace( items.item[1].name );
}
}
}
</source>

==XML text in a String into an actual XML object, whereas a cast would fail.==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var myXml:XML = XML("<root><party><time>Now</time><location>Here</location></party></root>");
trace(myXml.party[0].time); //Now
}
}
}
</source>

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Flash / Flex / ActionScript/XML/Bracket syntax - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия