public IDictionaryTreeNode <TKey, TValue> GetChildSection(IEnumerable <TKey> sections)
{
if (sections is null)
{
return(null);
}
IDictionaryTreeNode <TKey, TValue> node = Node;
return(sections.WhereNotNull().Any(section => !node.TryGetValue(section, out node)) ? null : node);
}
public IDictionaryTreeNode <TKey, TValue> GetChild(TKey key, IEnumerable <TKey> sections)
{
if (key is null)
{
throw new ArgumentNullException(nameof(key));
}
IDictionaryTreeNode <TKey, TValue> node = GetChildSection(sections);
if (node is null)
{
return(null);
}
node.TryGetValue(key, out IDictionaryTreeNode <TKey, TValue> value);
return(value);
}