GetPrefixOfNamespace()

string System.Xml.Linq.NamespaceResolver.GetPrefixOfNamespace ( XNamespace ns, bool allowDefaultNamespace )

inline

Definition at line 91 of file NamespaceResolver.cs.

    {
        if (_rover != null && _rover.ns == ns && (allowDefaultNamespace || _rover.prefix.Length > 0))
        {
            return _rover.prefix;
        }
        NamespaceDeclaration namespaceDeclaration = _declaration;
        if (namespaceDeclaration != null)
        {
            do
            {
                namespaceDeclaration = namespaceDeclaration.prev;
                if (!(namespaceDeclaration.ns == ns))
                {
                    continue;
                }
                NamespaceDeclaration prev = _declaration.prev;
                while (prev != namespaceDeclaration && prev.prefix != namespaceDeclaration.prefix)
                {
                    prev = prev.prev;
                }
                if (prev == namespaceDeclaration)
                {
                    if (allowDefaultNamespace)
                    {
                        _rover = namespaceDeclaration;
                        return namespaceDeclaration.prefix;
                    }
                    if (namespaceDeclaration.prefix.Length > 0)
                    {
                        return namespaceDeclaration.prefix;
                    }
                }
            }
            while (namespaceDeclaration != _declaration);
        }
        return null;
    }

References System.Xml.Linq.NamespaceResolver._declaration, System.Xml.Linq.NamespaceResolver._rover, System.Xml.Dictionary, System.Xml.Linq.NamespaceResolver.NamespaceDeclaration.ns, System.Xml.Linq.NamespaceResolver.NamespaceDeclaration.prefix, and System.Xml.Linq.NamespaceResolver.NamespaceDeclaration.prev.

Referenced by System.Xml.Linq.ElementWriter.GetPrefixOfNamespace(), and System.Xml.Linq.StreamingElementWriter.GetPrefixOfNamespace().