C# define schemaLocation in Attribute

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.NET3.5

C#

XML

.NET

Hello,

I want to generate this xml header:

<?xml version="1.0" encoding="UTF-8"?>
<ru:myobject XML_DATA="2.1.0"
    xmlns:ru="http://www.aaa.com" xmlns:t="http://www.bbb.com"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
http://www.aaa.com aaa.xsd
http://www.bbb.com bbb.xsd
http://www.ccc.com ddd.xsd">

The problem is the namespace in xsi:schemaLocation atribute.

here is my code:

XNamespace mynamespace = "http://www.aaa.com/test/";
XNamespace xsi = "http://www.aaa.com/test/ aaa.xsd http://www.bbb.com bbb.xsd http://www.ccc.com ccc.xsd";
XElement myobject = new XElement(mynamespace + "myobject", new XAttribute("XML_DATA", "2.1.0"));
myobject.Add(new XAttribute(XNamespace.Xmlns + "ru", "http://www.aaa.com"));
myobject.Add(new XAttribute(XNamespace.Xmlns + "t", "http://www.bbb.com"));
myobject.Add(new XAttribute(XNamespace.Xmlns + "xsi", "http://www.w3.org/2001/XMLSchema-instance"));

myobject.Add(new XAttribute(xsi+"schemaLocation", xsi.ToString()));

It generates this header and I don't know why.

<?xml version="1.0" encoding="UTF-8"?>
<ru:myobject XML_DATA="2.1.0"
xmlns:ru="http://www.aaa.com" xmlns:t="http://www.bbb.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
p3:schemaLocation=" http://www.aaa.com aaa.xsd http://www.bbb.com bbb.xsd http://www.ccc.com ddd.xsd"
xmlns:p3="http://www.aaa.com aaa.xsd http://www.bbb.com bbb.xsd http://www.ccc.com ddd.xsd">

Can anyone help? I'm newbie in xml