/// <summary>
/// Finds an existing equal module or returnes null.
/// </summary>
/// <param name="prefix"></param>
/// <param name="namespaceUri"></param>
/// <param name="namespacePosition"></param>
/// <returns></returns>
public SyndicationModule Add(SyndicationModule newModule)
{
foreach (SyndicationModule module in this)
{
if (module.Prefix == newModule.Prefix)
{
string paramName = "namespaceUri";
if (module.NamespaceURI == newModule.NamespaceURI)
{
if (module.NamespacePosition == newModule.NamespacePosition)
{
return(module);
}
else
{
paramName = "namespacePosition";
}
}
string msg = string.Format("Illegal to redefine an existing module. Module with prefix already exists.\r\nPrefix: {0}\r\nIllegal parameter: {1}", ((newModule.Prefix == null) ? "" : newModule.Prefix), paramName);
throw new ArgumentException(msg, "prefix");
}
}
m_items.Add(newModule);
return(newModule);
}
/// <summary>
/// Deserializes the object from XML.
/// </summary>
/// <param name="xnElement"></param>
/// <param name="exclusionElements"></param>
private void DeserializeFromXml(XmlNode xnElement, List <SyndicationModuleExclusionElement> exclusionElements)
{
foreach (XmlNode node in xnElement.ChildNodes)
{
if (node is XmlElement)
{
if (!InExclusionList(node, exclusionElements))
{
XmlElement xeNode = node as XmlElement;
SyndicationModule module;
if (IsNamespaceInDocumentElement(node.Prefix, node.NamespaceURI, xnElement.OwnerDocument.DocumentElement))
{
module = new SyndicationModule(node.Prefix, node.NamespaceURI, SyndicationModuleNamespacePosition.DocumentElement);
}
else
{
module = new SyndicationModule(node.Prefix, node.NamespaceURI, SyndicationModuleNamespacePosition.Element);
}
this.Add(module);
module.Elements.Add(new SyndicationModuleElement(xeNode));
} // if
} // if ( node is XmlElement )
} // foreach
}