Why don't I get the node value of the code node?

108 100+

I just happened to learn abt xml DOM.....I tried this script and run it bt didnt get the desired result..I expected to get the value I attached to my code node bt what I gt ws null which means that I went wrong somewhere in my script....

Expand|Select|Wrap|Line Numbers

 <html>

    <head>

        <script type='text/javascript'>

            xml_modules="<modules><module><code></code></module></modules>";

            var xml_modules;
 
            function addxml(url)
 
                {

                    var xmlDoc;

                    try{

                        xmlDoc=new ActiveXObject('Microsoft.XMLDOM');

                        xmlDoc.async='false';

                        xmlDoc.loadXML(url);

                        return xmlDoc;

                    }

                    catch(e){
 
                        try {

                            parser=new DOMParser();

                            xmlDoc=parser.parseFromString(url,'text/xml');

                            xmlDoc.encoding='UTF-8';

                            return xmlDoc;

                            }catch(e) {alert(e.message);}

                        }

                        return (null);
 
                } 

                var xml_Doc_modules=addxml(xml_modules);
 
                function textxml()

                    {
 
                        root=xml_Doc_modules.childNodes[0];

                        a=xml_Doc_modules.createTextNode('node1');
 
                        root.childNodes[0].childNodes[0].appendChild(a)    ;
 
                        alert(root.childNodes[0].childNodes[0].nodeValue);
 
                    } 
 
        </script>

    </head>

<body>

<button onclick='textxml()'>ProcessXml</button>
 
</body>

This is the script....!!!!
I went wrong somewhere in my codes bt cant guess where....
Can u tell me where I went wrong and how can I attach a value to a node ??

Thanks in adv

With regards
phpuser123

Apr 17 '10 #1

Subscribe Post Reply

1772

phpuser123

108

100+

I jst happened to learn abt xml DOm...For trial purposes i implemented this script
..

Expand|Select|Wrap|Line Numbers

 <html>

    <head>

        <script type='text/javascript'>

            var xml_modules;

            xml_modules="<modules><module><code></code><tbl></tbl></module></modules>";

            var xml_Doc_modules=loadString(xml_modules);

            function loadString(txt)

                    {

                        var xml_Doc;

                        try{

                            xmlDoc=new ActiveXObject("Microsoft.XMLDOM")    ;

                            xml_Doc.async="false";    

                            xml_Doc.loadXML(txt);

                            return xml_Doc;

                            }

                        catch(e)

                            {

                                try{

                                    parser=new DOMParser();

                                    xml_Doc=parser.parseFromString(txt,"text/xml");    

                                    xml_Doc.encoding='UTF-8';alert('sad');

                                    return xml_Doc;
 
                                }

                                catch(e){

                                        alert(e.message);

                                    }
 
                            }

                        return (null);

                    }
 
                function testxml(){

                        root=xml_Doc_modules.childNodes[0];

                        code_tbl=xml_Doc.createTextNode('tbl1');

                        code_text=xml_Doc_modules.createTextNode('code1');

                        root.childNodes[0].childNodes[1].appendChild(code_tbl);alert(code_tbl.nodeValue);

                        root.childNodes[0].childNodes[0].appendChild(code_text);alert(code_text.nodeValue);
 
                        }

        </script>

    <body>

        <button onclick='testxml()'>Preess me</button>

    </body>

    </html>

What i expect to see when I press my button is the value of my two nodes code and tbl....But the script is nt working .Somehow i managed to find out that the problem is with this line

code_tbl=xml_Doc.createTextNode('tbl1');

I dnt know what's the problem,cn u enlighten me with this ???

Thanks in adv

With regards

phpuser123

Apr 18 '10 #2

Dormilich

8,658

Expert Mod 8TB

what does the error console say?

Apr 18 '10 #3

jkmyoung

2,057

Expert 2GB

Is the response from your url valid xml, and does it get parsed correctly?
Do you know that root.childNodes[0].childNodes[0] exists?

Apr 19 '10 #4

Dormilich

8,658

Expert Mod 8TB

it is recommended to use xml_Doc.documentElement to get the root. the firstChild may point to whitespace, the DTD or other processing instructions.

Apr 19 '10 #5

phpuser123

108

100+

That's the problem the console doesnt sayy anythng...
I dont gt any alert box ....
When I happen to remove line 36 and line 38,I get my nodeValue of the code...
When i remove line 39 and 37,there is no alert box...
R there any prob in the lines 36 and 38 ?

Apr 19 '10 #6

Dormilich

8,658

Expert Mod 8TB

then why not using document.createTextNode() ?

Apr 19 '10 #7

phpuser123

108

100+

Yeps i'lll try this one ...
Bt some miracle happened,the above script started working all by itself...
I dnt know hw this happened......

Apr 19 '10 #8

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