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LoadXML external XML

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Hello everybody,

Question, How I can load the external xml file data in the form.

For examle I have owned a dropdown list box that contains the following give: A, B, C.

And then I have fields in my form: TextField1, TextField2,textField3.

By changing event dropdownlist box I must load the xml dynamically:

http://mywebsite.com/userdata/myxml-A.xml
or
http://mywebsite.com/userdata/myxml-B.xml
or
http://mywebsite.com/userdata/myxml-C.xml

The XML file is loaded in the fields fill in the form:
for example:
textField1.rawValue = C.textForField1
textField2.rawValue = C.textForField2
textField3.rawValue = C.textForField3

Does anyone could give me an example how I shouldproceed?
Thank you in advance.

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Here is my scipt // don't work

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Projects.Page1.lstProjects::change - (JavaScript, client)

var xmlURL = "http://www.mywebsite.com/userdata/myXML-"+xfa.event.newText+".xml";

app.alert(xmlURL); //work, response : http://www.mywebsite.com/userdata/myXML-A.xml";

xfa.datasets.loadXML(xmlURL, false, false);

xfa.datasets.saveXML();

var projectXML=xfa.datasets.resolveNode("Project");

app.alert(projectXML); // don't work

var numberOfNodes = projectXML.nodes.length;

app.alert(numberOfNodes); //don't work

-----------------------------------------------------------------------

Here is the structure of myXML file (myXML-A.xml) :

-----------------------------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE Project SYSTEM ".dtd/project.dtd">

<Project>

     <OfficialNumber>001</OfficialNumber>

     <Title>Title of my test project</Title>

     <DateReceived showFormat="YYYY-MM-DD" defaultFormat="YYYY-MM-DD">2011-06-30</DateReceived>

     <TypeOfProject>Type1</TypeOfProject>

     <Organisation>Organisation1</Organisation>

</Projec

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