topic Re: Reading XML with Flex in Application Development and Automation Discussions

Reading XML with Flex

Former Member — Sat, 27 Oct 2007 11:45:23 GMT

Ok I've gone through Ed's awesome Flex tutorial in the wiki but for some reason I simply can't nail this one.


	<mx:Label y="10" text="Craig's Movie List" id="lblTitle" enabled="true" horizontalCenter="0" fontSize="19" fontFamily="Arial" fontWeight="bold" fontStyle="italic"/>
	
     <mx:HTTPService id="httpRSS" url="http://creator.zoho.com/ccmehil/rss/30/" resultFormat="e4x" />
     
     <mx:DataGrid id="entries" verticalCenter="11" horizontalCenter="0" width="480" dataProvider="{httpRSS.lastResult.channel.item}" height="230">
		<mx:columns>
			<mx:DataGridColumn headerText="Name" dataField="title" width="300"/>
            <mx:DataGridColumn headerText="Rating" dataField="zc:Rating" width="50"/>
            <mx:DataGridColumn headerText="Type" dataField="zc:Genre"/>
            <mx:DataGridColumn headerText="Runtime" dataField="zc:Runtime"/>
		</mx:columns>
	 </mx:DataGrid>

The RSS looks like



<item>
  <title>Winnie the Pooh - A New friend for Winnie Pooh</title>
  <link><a href="http://creator.zoho.com/ccmehil/view/30/record/7987000000110023/" TARGET="test_blank">http://creator.zoho.com/ccmehil/view/30/record/7987000000110023/</a></link>
  <description><b>Title</b> : Winnie the Pooh - A New friend for Winnie Pooh<br/><b>Genre</b> : Zeichentrick<br/><b>Rating</b> : G<br/><b>Director</b> : <br/><b>Year</b> : <br/><b>Runtime</b> : 65<br/><b>Status</b> : Available</description>
  <guid isPermaLink="true"><a href="http://creator.zoho.com/ccmehil/view/30/record/7987000000110023/" TARGET="test_blank">http://creator.zoho.com/ccmehil/view/30/record/7987000000110023/</a></guid>
  <zc:Title>Winnie the Pooh - A New friend for Winnie Pooh</zc:Title>
  <zc:Genre>Zeichentrick</zc:Genre>
  <zc:Rating>G</zc:Rating>
  <zc:Director></zc:Director>
  <zc:Year></zc:Year>
  <zc:Runtime>65</zc:Runtime>
  <zc:Status>Available</zc:Status>
</item>

So why can't I access the zc elements? What am I missing?

Re: Reading XML with Flex

athavanraja — Sat, 27 Oct 2007 12:43:19 GMT

check this documentation on how to handle namespace

http://livedocs.adobe.com/flex/201/html/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Book_Parts&file=dataservices_099_17.html

Re: Reading XML with Flex

Former Member — Sat, 27 Oct 2007 19:20:22 GMT

I must not have something right


	<mx:Label y="10" text="Craig's Movie List" id="lblTitle" enabled="true" horizontalCenter="0" fontSize="19" fontFamily="Arial" fontWeight="bold" fontStyle="italic"/>
	
	 <mx:Script>
        <![CDATA[
          private var zc:Namespace = new Namespace("http://creator.zoho.com/ccmehil/rss/30/");
        
     
	
	
     
     
     
		
			
            
            
            
		
	 
]]>

namespace defined but either I defined it wrong or I can't access the element like that in the "datafield"?

Re: Reading XML with Flex

Former Member — Sat, 27 Oct 2007 20:58:43 GMT

Hi Craig,

I don't think the DataGridColumn really likes dealing with namespaces for the dataField. As an alternative, try using the labelFunction instead. See sample below:


     <mx:Label y="10" text="Craig's Movie List" id="lblTitle" enabled="true" horizontalCenter="0" fontSize="19" fontFamily="Arial" fontWeight="bold" fontStyle="italic"/>
	
     <mx:Script>
         <![CDATA[
              import mx.controls.dataGridClasses.DataGridColumn;
              private var zc:Namespace = new Namespace("http://creator.zoho.com/rss/");
          
              public function ratingReturn(item:XML, column:DataGridColumn):String{
                  return item.zc::Rating;
              }
          
     
	
	
     
     
     
         
		
                
	 
     	
]]>

Re: Reading XML with Flex

Former Member — Sat, 27 Oct 2007 21:40:59 GMT

Thanks Eddie! Seems the Namespace URL was the biggest issue


<mx:Label y="10" text="Craig's Movie List" id="lblTitle" enabled="true" horizontalCenter="0" fontSize="19" fontFamily="Arial" fontWeight="bold" fontStyle="italic"/>
	
     <mx:Script>
         <![CDATA[
              import mx.controls.dataGridClasses.DataGridColumn;
              private var zc:Namespace = new Namespace("http://creator.zoho.com/rss/");
          
              public function ratingReturn(item:XML, column:DataGridColumn):String{
                  return item.zc::Rating;
              }
              public function ratingGenre(item:XML, column:DataGridColumn):String{
                  return item.zc::Genre;
              }
              public function ratingRuntime(item:XML, column:DataGridColumn):String{
                  return item.zc::Runtime;
              }              
           
     
	
	
     
     
     
       
		
        
        
        
	   
     	
]]>

Re: Reading XML with Flex

Former Member — Sat, 27 Oct 2007 22:47:12 GMT

In case anyone is wondering about what all this is...


     <mx:Label y="10" text="Craig's Movie List" id="lblTitle" enabled="true" horizontalCenter="298" fontSize="19" fontFamily="Arial" fontWeight="bold" fontStyle="italic"/>
	
     <mx:Script>
         <![CDATA[
         	  import com.adobe.net.URI;
              import mx.controls.dataGridClasses.DataGridColumn;
              import mx.utils.StringUtil;
              
              private var zc:Namespace = new Namespace("http://creator.zoho.com/rss/");
              [Bindable] private var rssSearchStr:String = "http://creator.zoho.com/ccmehil/rss/30/&7987000000030975={0}&7987000000030975_op=26&searchCrit=true&fcid=null&isAscend=null/";
              [Bindable] private var rssTitleSearchStr:String = "http://creator.zoho.com/ccmehil/rss/30/&7987000000030971={0}&7987000000030971_op=26&searchCrit=true&fcid=null&isAscend=null/";
              [Bindable] private var rssStr:String = "http://creator.zoho.com/ccmehil/rss/30/";
              [Bindable] private var rssURI:String = "http://creator.zoho.com/ccmehil/rss/30/";
          
              public function ratingReturn(item:XML, column:DataGridColumn):String{
                  return item.zc::Rating;
              }
              public function ratingGenre(item:XML, column:DataGridColumn):String{
                  return item.zc::Genre;
              }
              public function ratingRuntime(item:XML, column:DataGridColumn):String{
                  return item.zc::Runtime;
              }    
              public function searchRSS():void{
               httpRSS.clearResult();
               txtTitleSearch.text = "";
               var str:String = rssSearchStr;
               str = StringUtil.substitute(str, txtSearch.text);
               rssURI = str;
               httpRSS.send();
              }
              public function searchTitleRSS():void{
               httpRSS.clearResult();
               txtSearch.text = "";
               var str:String = rssTitleSearchStr;
               str = StringUtil.substitute(str, txtTitleSearch.text);
               rssURI = str;
               httpRSS.send();
              }          
              public function latestRSS():void{
              	rssURI = rssStr;
              	httpRSS.send();
              }  
           
     
	
	
     
     
     
       
		
        
        
        
	   
     	
     
     
     
     
     

     
          
     
     
]]>

what I'm working on now is the ablilty to "login" and edit the records via the Flex app as well. Since Zoho Creator now has an API that was the whole point really but again just a test but does open up several new doors for things in the community on "quick turn around"

Re: Reading XML with Flex

Former Member — Sat, 27 Oct 2007 22:59:34 GMT

http://webaura.info/flex/zoho_creator_test.swf

Live test

Re: Reading XML with Flex

athavanraja — Sun, 28 Oct 2007 06:22:19 GMT

try this test tool for e4x parsing

http://download.macromedia.com/pub/developer/dynamic_e4x.zip

Re: Reading XML with Flex

Former Member — Sun, 28 Oct 2007 06:31:02 GMT

cool!

Re: Reading XML with Flex

abesh — Sun, 28 Oct 2007 14:19:43 GMT

Raja,

Damn Damn helpful.

Thanks a ton

Cheers

Abesh

Re: Reading XML with Flex

Former Member — Sun, 28 Oct 2007 18:51:45 GMT

Here we go a real live test of my first Flex web app

http://webaura.info/flex/movies/Craig_Movies.html

Re: Reading XML with Flex

Former Member — Tue, 30 Oct 2007 14:58:09 GMT

Pretty cool! -:D But it's also kinda empty -:P Anyway...Good job! It's nice to see that your are improving your Flex skills! Must do the same myself...Just need more time to do all things I must do -:(

Greetings,

Blag.

Re: Reading XML with Flex

Former Member — Tue, 30 Oct 2007 21:37:35 GMT

only when I run outside of my local environment.