how to use responseXML to parse xml

Hi,

I am sending this xml from server
<assignmentList>
<assignment>
<id>333</id><name>1170235257994</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>
</assignment>
<assignment>
<id>333</id><name>1170235257994</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>1</listenerClass>
</assignment>
</assignmentList>

I need to parse above xml to get id , name,fileclass etc

but in my js
var root = o.responseXML.documentElement;
var length=root.getElementsByTagName('assignment").length;
alert(length); // displays 0.

I need to get the length and iterate to get values from above two tags.
But could not achieve it.




but when I send

<assignmentList>
<assignment>
<id>333</id><name>1170235257994</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>
</assignment>
</assignmentList>

alert(length); // displays 1. correct


Can you please show me how I can get correct length and then get values from it
by getting values I mean

var assetId = root.getElementsByTagName('id').firstChild.nodeValue;

currently not working.

I checked xml that is returned by server

Server returns

<assignmentList>
<assignment>

<id>397</id><name>1170251844329</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>

</assignment>

<assignment>
<id>397</id><name>1170251844329</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>1</listenerClass>

</assignment>

</assignmentList>



But when I checked in js
alert("returned xml is ="+o.responseText);

displaying:--

<assignmentList>
<assignment>

<id>397</id><name>1170251844329</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>

</assignment>

<assignment>
<id>397</id><name>1170251844329</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>1</listenerClass>

</assignment>

</assignmentList>

<assignmentList>
<assignment>

<id>397</id><name>1170251844329</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>0</listenerClass>

</assignment>

<assignment>
<id>397</id><name>1170251844329</name><fileClass>4</fileClass><checked_out_by> </checked_out_by><status>s1</status><publication>p1</publication><section>s1</section><change_type>1</change_type><listenerClass>1</listenerClass>

</assignment>

</assignmentList>

I got two <assignmentList> tags

thus
var root = o.responseXML.documentElement;
might not be working.

Any ideas why I am getting this kind of behaviour.
Already spent 2 days solving this problem




waiting for response


thanks

 

You can iterate thru root.getElementsByTagName('assignment")[loop] from loop=0 increasing it until you get undefined.