/// <include file='doc\XmlSerializationWriter.uex' path='docs/doc[@for="XmlSerializationWriter.WriteStartElement5"]/*' />
protected void WriteStartElement(string name, string ns, object o, bool writePrefixed, XmlSerializerNamespaces xmlns)
{
if (o != null && _objectsInUse != null)
{
if (_objectsInUse.ContainsKey(o))
{
throw new InvalidOperationException(SR.Format(SR.XmlCircularReference, o.GetType().FullName));
}
_objectsInUse.Add(o, o);
}
string prefix = null;
bool needEmptyDefaultNamespace = false;
if (_namespaces != null)
{
foreach (string alias in _namespaces.Namespaces.Keys)
{
string aliasNs = (string)_namespaces.Namespaces[alias];
if (alias.Length > 0 && aliasNs == ns)
{
prefix = alias;
}
if (alias.Length == 0)
{
if (aliasNs == null || aliasNs.Length == 0)
{
needEmptyDefaultNamespace = true;
}
if (ns != aliasNs)
{
writePrefixed = true;
}
}
}
_usedPrefixes = ListUsedPrefixes(_namespaces.Namespaces, _aliasBase);
}
if (writePrefixed && prefix == null && ns != null && ns.Length > 0)
{
prefix = _w.LookupPrefix(ns);
if (prefix == null || prefix.Length == 0)
{
prefix = NextPrefix();
}
}
if (prefix == null && xmlns != null)
{
prefix = xmlns.LookupPrefix(ns);
}
if (needEmptyDefaultNamespace && prefix == null && ns != null && ns.Length != 0)
{
prefix = NextPrefix();
}
_w.WriteStartElement(prefix, name, ns);
if (_namespaces != null)
{
foreach (string alias in _namespaces.Namespaces.Keys)
{
string aliasNs = (string)_namespaces.Namespaces[alias];
if (alias.Length == 0 && (aliasNs == null || aliasNs.Length == 0))
{
continue;
}
if (aliasNs == null || aliasNs.Length == 0)
{
if (alias.Length > 0)
{
throw new InvalidOperationException(SR.Format(SR.XmlInvalidXmlns, alias));
}
WriteAttribute("xmlns", alias, null, aliasNs);
}
else
{
if (_w.LookupPrefix(aliasNs) == null)
{
// write the default namespace declaration only if we have not written it already, over wise we just ignore one provided by the user
if (prefix == null && alias.Length == 0)
{
break;
}
WriteAttribute("xmlns", alias, null, aliasNs);
}
}
}
}
WriteNamespaceDeclarations(xmlns);
}
/// <include file='doc\XmlSerializationWriter.uex' path='docs/doc[@for="XmlSerializationWriter.WriteStartElement5"]/*' />
protected void WriteStartElement(string name, string ns, object o, bool writePrefixed, XmlSerializerNamespaces xmlns) {
if (o != null && objectsInUse != null) {
if (objectsInUse.ContainsKey(o)) throw new InvalidOperationException(Res.GetString(Res.XmlCircularReference, o.GetType().FullName));
objectsInUse.Add(o, o);
}
string prefix = null;
bool needEmptyDefaultNamespace = false;
if (namespaces != null) {
foreach(string alias in namespaces.Namespaces.Keys) {
string aliasNs = (string)namespaces.Namespaces[alias];
if (alias.Length > 0 && aliasNs == ns)
prefix = alias;
if (alias.Length == 0) {
if (aliasNs == null || aliasNs.Length == 0)
needEmptyDefaultNamespace = true;
if (ns != aliasNs)
writePrefixed = true;
}
}
usedPrefixes = ListUsedPrefixes(namespaces.Namespaces, aliasBase);
}
if (writePrefixed && prefix == null && ns != null && ns.Length > 0) {
prefix = w.LookupPrefix(ns);
if (prefix == null || prefix.Length == 0) {
prefix = NextPrefix();
}
}
if (prefix == null && xmlns != null) {
prefix = xmlns.LookupPrefix(ns);
}
if (needEmptyDefaultNamespace && prefix == null && ns != null && ns.Length != 0)
prefix = NextPrefix();
w.WriteStartElement(prefix, name, ns);
if (namespaces != null) {
foreach(string alias in namespaces.Namespaces.Keys) {
string aliasNs = (string)namespaces.Namespaces[alias];
if (alias.Length == 0 && (aliasNs == null || aliasNs.Length == 0))
continue;
if (aliasNs == null || aliasNs.Length == 0) {
if (alias.Length > 0)
throw new InvalidOperationException(Res.GetString(Res.XmlInvalidXmlns, alias));
WriteAttribute("xmlns", alias, null, aliasNs);
}
else {
if (w.LookupPrefix(aliasNs) == null) {
// write the default namespace declaration only if we have not written it already, over wise we just ignore one provided by the user
if (prefix == null && alias.Length == 0)
break;
WriteAttribute("xmlns", alias, null, aliasNs);
}
}
}
}
WriteNamespaceDeclarations(xmlns);
}
