Flash / Flex / ActionScript/XML/loop through

Accessing Descendants

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var loan:XML = <LOAN>
          <BOOK ISBN="0000000000" DUE="1136091600000">
            <TITLE>ActionScript</TITLE>
            <AUTHOR>J, J</AUTHOR>
            <PUBLISHER>Books Ltd</PUBLISHER>
          </BOOK>
        </LOAN>;
        
        for each (var title:XML in loan..TITLE) {
          trace(title);
        }

    }
  }
}

Create Date object from xml data

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){

        var loan:XML = <LOAN>
          <BOOK ISBN="0000000000" DUE="1136091600000">
            <TITLE>ActionScript</TITLE>
            <AUTHOR>J, J</AUTHOR>
            <PUBLISHER>Books Ltd</PUBLISHER>
          </BOOK>
        </LOAN>;
        
        
        for each (var due:XML in loan..@DUE) {
          trace(new Date(Number(due)));
        }
    }
  }
}

Iterating through the Children of an Element

 

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>;
        
        var movieTitles:Array = new Array();
        var movies:XMLList = movieList.movie;
        for (var i:int = 0; i < movies.length(); i++) {
         movieTitles[i] = movies[i].title;
         }
        movieTitles.sort();
        trace(movieTitles); // Displays: Annie Hall,Rushmore,Titus
    }
  }
}

Processing XML with for-each-in and for-in

 
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>;
        
        for each (var child:XML in novel.*) {
          trace(child);
        }
    }
  }
}

Tree traversal: converts every element and attribute name to lowercase:

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var novel:XML = <BOOK ISBN="0000000000">
            <TITLE>ActionScript</TITLE>                    <!--Previous sibling-->
            <AUTHOR>J, J</AUTHOR>
            <PUBLISHER>Books Ltd</PUBLISHER>  <!--Next sibling-->
          </BOOK>;
          
        for each (var child:XML in novel..*) {
          if (child.nodeKind(  ) == "element") {
            child.setName(child.name().toString().toLowerCase(  ));
        
            for each (var attribute:XML in child.@*) {
              attribute.setName(attribute.name().toString().toLowerCase(  ));
            }
          }
        }
    }
  }
}

Use for each loop to access the attributes

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){

        var loan:XML = <LOAN>
          <BOOK ISBN="0000000000" DUE="111111111111111111">
            <TITLE>ActionScript</TITLE>
            <AUTHOR>J, J</AUTHOR>
            <PUBLISHER>Books Ltd</PUBLISHER>
          </BOOK>
        </LOAN>;
        
        for each (var attribute:XML in loan..@*) {
          trace(attribute.parent(  ).TITLE
                 + ": " + attribute.name(  ) + "=" + attribute);
        }
    }
  }
}

Use for loop to go through the xml data

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var order:XML = <ORDER>
          <ITEM SKU="374">
            <NAME>Toy</NAME>
            <PRICE>39.99</PRICE>
            <QUANTITY>2</QUANTITY>
          </ITEM>
        </ORDER>
        
        for (var childName:String in order.*) {
          trace(childName);
        }
    }
  }
}

Use the for..in or for each..in statements to iterate through an XMLList.

 
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>;
        
        var movies:XMLList = movieList.movie;
        for each (var movie:XML in movies) {
            movie.title = movie.title.toUpperCase();
        }
        trace(movies.title);
        
    }
  }
}