/// <summary>
/// Public Constructor.
/// </summary>
/// <param name="prefix"></param>
/// <param name="namespaceUri"></param>
/// <param name="namespacePosition"></param>
public SyndicationModule(string prefix, string namespaceUri, SyndicationModuleNamespacePosition namespacePosition)
{
this.m_prefix = NormalizePrefix(prefix);
this.m_namespaceUri = NormalizeNamespaceUri(namespaceUri);
this.m_namespacePosition = namespacePosition;
//
// The following combination is not valid. You cannot
// set a namespace at document-element level and not
// have a prefix.
//
if (namespacePosition == SyndicationModuleNamespacePosition.DocumentElement && !this.IsValidPrefix())
{
string msg = string.Format("SyndicationModule cannot have a namespace positioned at DocumentElement without prefix value.");
throw new ArgumentException(msg, "prefix,namespacePosition");
}
//
// The following combination is not valid. You cannot
// have a module with a prefix but not a namespace.
//
if (!IsValidNamespaceURI() && IsValidPrefix())
{
string msg = string.Format("SyndicationModule cannot have a prefix and not a namespace.");
throw new ArgumentException(msg, "prefix,namespaceUri");
}
}
/// <summary>
/// Gets the specified SyndicationModule with given prefix, namespaceUri and namespacePosition.
/// </summary>
public SyndicationModule this[string prefix, string namespaceUrl, SyndicationModuleNamespacePosition namespacePosition] {
get {
foreach (SyndicationModule module in this)
{
if (module.Prefix == prefix &&
module.NamespaceURI == namespaceUrl &&
module.NamespacePosition == namespacePosition)
{
return(module);
}
}
return(null);
}
}