public virtual ISiteMapNodeCollection GetChildNodes(ISiteMapNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
ISiteMapNodeCollection collection = null;
if (this.childNodeCollectionTable.ContainsKey(node))
{
collection = this.childNodeCollectionTable[node];
}
if (collection == null)
{
ISiteMapNode keyNode = null;
if (this.keyTable.ContainsKey(node.Key))
{
keyNode = this.keyTable[node.Key];
}
if (keyNode != null && this.childNodeCollectionTable.ContainsKey(keyNode))
{
collection = this.childNodeCollectionTable[keyNode];
}
}
if (collection == null)
{
return(siteMapChildStateFactory.CreateEmptyReadOnlySiteMapNodeCollection());
}
if (!this.SecurityTrimmingEnabled)
{
return(siteMapChildStateFactory.CreateReadOnlySiteMapNodeCollection(collection));
}
var secureCollection = siteMapChildStateFactory.CreateSiteMapNodeCollection();
foreach (ISiteMapNode secureNode in collection)
{
if (secureNode.IsAccessibleToUser())
{
secureCollection.Add(secureNode);
}
}
return(siteMapChildStateFactory.CreateReadOnlySiteMapNodeCollection(secureCollection));
}
