System.Xml.XmlNodeReaderImpl.XmlNodeReaderImpl.LookupNamespace C# (CSharp) Méthode

		public override string LookupNamespace (string prefix)
		{
			if (current == null)
				return null;

			XmlElement el = GetCurrentElement ();

			for (; el != null; el = el.ParentNode as XmlElement) {
				for (int i = 0; i < el.Attributes.Count; i++) {
					XmlAttribute attr = el.Attributes [i];
					if (attr.NamespaceURI != XmlNamespaceManager.XmlnsXmlns)
						continue;
					if (prefix == "") {
						if (attr.Prefix == "")
							return attr.Value;
					}
					else if (attr.LocalName == prefix)
						return attr.Value;
					continue;
				}
			}

			switch (prefix) {
			case XmlNamespaceManager.PrefixXml:
				return XmlNamespaceManager.XmlnsXml;
			case XmlNamespaceManager.PrefixXmlns:
				return XmlNamespaceManager.XmlnsXmlns;
			}
			return null;
		}