XMLNamespace

Namespaces are a vital part of the XML standard. They prevent name clashes, so that you can mix elements from different sources even if they have the same name. You must only ensure that they belong to different namespaces.

In BI#, you can use the XMLNamespace data type to manage XML document namespaces. This example process creates a single document that defines two different namespaces:

#define EngineVersion 5.0
#define RuntimeVersion 5.0

void XmlNamespaceDemo()
{
     string exampleComURL = "http://www.example.com";
     string inforComURL = "http://www.infor.com";

     XMLNamespace ec = XMLCreateNamespace(exampleComURL);
     XMLNamespace ic = XMLCreateNamespace(inforComURL);
     XMLElement root = XMLCreateElement(ec, "Root");

     XMLSetAttributeValue(root, XMLCreateXmlnsNamespace(), "ec", exampleComURL);
     XMLSetAttributeValue(root, XMLCreateXmlnsNamespace(), "ic", inforComURL);
     XMLElement child = XMLCreateElement(ic, "Child");
     XMLAddElement(root, child);

     XMLElement differentChild = XMLCreateElement(ec, "AnotherChild");
     XMLSetContent(differentChild, "Other content.");
     XMLAddElement(child, differentChild);

     XMLElement child2 = XMLCreateElement(ec, "Child2");
     XMLSetContent(child2, "Content of child #2.");
     XMLAddElement(root, child2);

     XMLElement child3 = XMLCreateElement(ic, "Child3");
     XMLSetContent(child3, "Content of child #2.");
     XMLAddElement(root, child3);

     WriteLine(ToString(root));
}

The document created by the example process looks like this:

<ec:Root xmlns:ec="http://www.example.com" xmlns:ic="http://www.infor.com">
  <ic:Child>
    <ec:AnotherChild>Other content.</ec:AnotherChild>
  </ic:Child>
  <ec:Child2>Content of child #2.</ec:Child2>
  <ic:Child3>Content of child #2.</ic:Child3>
</ec:Root>

After you have created an XMLNamespace, you can use it in all the functions to create XML nodes such as XMLCreateElement, XMLCreateAttribute, etc. That is, you can use them in all places that specify the name of an element or an attribute. The same is true for retrieving elements and attributes.