в 09:19, 26 мая 2010

2010-05-26T09:19:12Z

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2010-05-26T08:14:36Z

1 версия

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==Access child nodes using E4X"s more convenient properties wildcard (*).==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var rootElementName:String = "BOOK";
var rootAttributeName:String = "ISBN";
var childElementNames:Array = ["TITLE", "AUTHOR", "PUBLISHER"];
var bookISBN:String = "0000000000";
var bookTitle:String = "ActionScript";
var bookAuthor:String = "J, J";
var bookPublisher:String = "Books Ltd";
var novel:XML = <{rootElementName} {rootAttributeName}={bookISBN}>
<{childElementNames[0]}>{bookTitle}</{childElementNames[0]}>
<{childElementNames[1]}>{bookAuthor}</{childElementNames[1]}>
<{childElementNames[2]}>{bookPublisher}</{childElementNames[2]}>
</{rootElementName}>;
trace(novel);
}
}
}
</source>

==appendChild to XML value==



<source lang="java">

package{
import flash.display.Sprite;

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

example.appendChild( <two>2</two> );

example.prependChild( <one>"number 1"</one> );

example.insertChildAfter( example.one[0], 1.5 );
example.insertChildBefore( example.two[0], <part>1.75</part> );

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

==Delete all children contained by an element==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){

var novel:XML = <BOOK ISBN="0000000000">
<TITLE>ActionScript</TITLE>
<AUTHOR>J, J</AUTHOR>
<PUBLISHER>Books Ltd</PUBLISHER>
</BOOK>;
trace(novel);
delete novel.*;
trace(novel);
}
}
}
</source>

==Get tag child==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var rootElementName:String = "BOOK";
var rootAttributeName:String = "ISBN";
var childElementNames:Array = ["TITLE", "AUTHOR", "PUBLISHER"];
var bookISBN:String = "0000000000";
var bookTitle:String = "ActionScript";
var bookAuthor:String = "J, J";
var bookPublisher:String = "Books Ltd";
var novel:XML = <{rootElementName} {rootAttributeName}={bookISBN}>
<{childElementNames[0]}>{bookTitle}</{childElementNames[0]}>
<{childElementNames[1]}>{bookAuthor}</{childElementNames[1]}>
<{childElementNames[2]}>{bookPublisher}</{childElementNames[2]}>
</{rootElementName}>;
trace(novel.children());
}
}
}
</source>

==Get the first child in a list of child nodes==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var rootElementName:String = "BOOK";
var rootAttributeName:String = "ISBN";
var childElementNames:Array = ["TITLE", "AUTHOR", "PUBLISHER"];
var bookISBN:String = "0000000000";
var bookTitle:String = "ActionScript";
var bookAuthor:String = "J, J";
var bookPublisher:String = "Books Ltd";
var novel:XML = <{rootElementName} {rootAttributeName}={bookISBN}>
<{childElementNames[0]}>{bookTitle}</{childElementNames[0]}>
<{childElementNames[1]}>{bookAuthor}</{childElementNames[1]}>
<{childElementNames[2]}>{bookPublisher}</{childElementNames[2]}>
</{rootElementName}>;

trace(novel.children()[0]);
}
}
}
</source>

==Get the last child in a list of child nodes: theNode.children( )[theNode.children().length( )-1]==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){

var rootElementName:String = "BOOK";
var rootAttributeName:String = "ISBN";
var childElementNames:Array = ["TITLE", "AUTHOR", "PUBLISHER"];
var bookISBN:String = "0000000000";
var bookTitle:String = "ActionScript";
var bookAuthor:String = "J, J";
var bookPublisher:String = "Books Ltd";
var novel:XML = <{rootElementName} {rootAttributeName}={bookISBN}>
<{childElementNames[0]}>{bookTitle}</{childElementNames[0]}>
<{childElementNames[1]}>{bookAuthor}</{childElementNames[1]}>
<{childElementNames[2]}>{bookPublisher}</{childElementNames[2]}>
</{rootElementName}>;

trace(novel.children( )[novel.children().length( )-1]);
}
}
}
</source>

==prependChild, insertChildAfter, insertChildBefore==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var example:XML = <example>
<b />
<d />
<f />
</example>;
example.appendChild(<g />);
trace(example);

example.prependChild(<a />);
trace(example);

example.insertChildAfter(example.b, <c />);
trace(example);

example.insertChildBefore(example.f, <e />);

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

==Removes one element from its parent element==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var novel:XML = <BOOK ISBN="0000000000">
<TITLE>ActionScript</TITLE>
<AUTHOR>J, J</AUTHOR>
<PUBLISHER>Books Ltd</PUBLISHER>
</BOOK>;
trace(novel);
delete novel.TITLE;
trace(novel);

}
}
}
</source>

==Replacing Values in XML Nodes: the setChildren() method.==



<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>;

movieList.movie.(@id == 123).setChildren(null);
trace(movieList.movie.(@id == 222).toXMLString());

movieList.movie.(@id == 123).setChildren(<title>Sleep</title> +
<year>2006</year> +
<director>M G</director> +
<genre>Romance</genre>);
trace(movieList.movie.(@id == 123).toXMLString());
}
}
}
</source>

==Returns all child elements of BOOK named AUTHOR==



<source lang="java">

package{
import flash.display.Sprite;

public class Main extends Sprite{
public function Main(){
var rootElementName:String = "BOOK";
var rootAttributeName:String = "ISBN";
var childElementNames:Array = ["TITLE", "AUTHOR", "PUBLISHER"];
var bookISBN:String = "0000000000";
var bookTitle:String = "ActionScript";
var bookAuthor:String = "J, J";
var bookPublisher:String = "Books Ltd";
var novel:XML = <{rootElementName} {rootAttributeName}={bookISBN}>
<{childElementNames[0]}>{bookTitle}</{childElementNames[0]}>
<{childElementNames[1]}>{bookAuthor}</{childElementNames[1]}>
<{childElementNames[2]}>{bookPublisher}</{childElementNames[2]}>
</{rootElementName}>;

trace(novel.AUTHOR); //
}
}
}
</source>

==Use insertChildBefore( ) and insertChildAfter( ) to modify an XML tree==



<source lang="java">

package{
import flash.display.Sprite;

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

example.two = "";

// Before the two element node, add a one element node
example = example.insertChildBefore( example.two, <one /> );

// After the two element node, add a three element node
example = example.insertChildAfter( example.two, <three /> );

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

==Using child(), you can search the element for any children with a given name.==



<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.child("year"));
}
}
}
</source>

==Using XML Methods to Combine Values==



<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>;

movieList.movie[0].appendChild(<genre>Drama</genre>);
movieList.movie[1].appendChild(<genre>Comedy</genre>);
movieList.movie[2].appendChild(<genre>Sci-Fi</genre>);
trace(movieList.movie);
}
}
}
</source>

==You can also use the children() method to get a child by index rather than node name.==



<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.children()[0].toXMLString());

trace(movieList.children()[2].children()[0].toXMLString());

}
}
}
</source>

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Flash / Flex / ActionScript/XML/child - История изменений

в 09:19, 26 мая 2010

Admin: 1 версия