XML: Newbie with XSD and attributes

I'm having trouble with attributes given an .xsd. This is the schema.

My task, for now, is to create PersonTypeElement. I'm creating the xml in a text editor and validating that with VB.NET 1.0 code. The code was copied from a built in example.

I've made an xml document that validates, it's more than this, but for simplicity, let's say it looks like this:

Code:

---

<?xml version="1.0"?>

<PersonTypeElement
xmlns="http://www.it.ojp.gov/jxdd/prerelease/3.0.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.it.ojp.gov/jxdd/prerelease/3.0.0.0 jxdds.xsd">

        <PersonPhysicalDetails>
        <PersonHeightMeasure>73</PersonHeightMeasure>
        </PersonPhysicalDetails>

</PersonTypeElement>

---

It's obvious from the xsd that they're expeciting an attribute to describe the unit measure. However, whenever I add an atribute to the element, my .NET coded validation fails.

For example,

Code:

---

<?xml version="1.0"?>

<PersonTypeElement
xmlns="http://www.it.ojp.gov/jxdd/prerelease/3.0.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.it.ojp.gov/jxdd/prerelease/3.0.0.0 jxdds.xsd">

        <PersonPhysicalDetails>
        <PersonHeightMeasure PersonHeightUnitCode="in">73</PersonHeightMeasure>
        </PersonPhysicalDetails>

</PersonTypeElement>

---

As I don't know what I'm doing, I've tried lots of attribute names, but can't get anything to validate.

Any help is much appreciated,
Mike

FWIW, figured it out. Need to use namespaces. So this

Code:

---

<PersonTypeElement
xmlns="http://www.it.ojp.gov/jxdd/prerelease/3.0.0.0"

---

becomes

Code:

---

<PersonTypeElement
xmlns:jdd="http://www.it.ojp.gov/jxdd/prerelease/3.0.0.0"

---

and then jdd: is prepended to all element/attribute opening and closing tags.