/// <summary>
/// The default indexer will try to return a Primary value from this instance.
/// If the key isn't found, then it will look for it in parents, starting from
/// the most recently added, and then looking backwards through other parents added earlier.
/// Note that the "setter" for this indexer has no effect on Parents.
/// It will only set the value in the top-level Primary dictionary.
/// Parent and Default values, in other words, continue to "shadow" the keyed property just as before.
/// If the property associated with a given key is shallowly removed, the shadow value comes back into view.
/// If it is deeply removed, then the property ceases to exist at any level.
/// </summary>
/// <param name="key">The key used to identify a particular property.</param>
/// <returns>
/// The value found for the specified key.
/// </returns>
public TValue this[TKey key]
{
get { return(this[key, false]); }
set
{
lock (_syncRoot)
{
if (_localEntries.ContainsKey(key))
{
_localEntries[key] = value;
}
else
{
_localEntries.Add(key, value);
}
}
}
}
