Tree - Methods

In addition to Set Methods, the class Tree has the following methods.

After This method queries the element following a given key.
Before This method queries the element preceeding a given key.
ContainsKey This method determines if a key resides in the tree.
Find This method searches the tree for a given key.
GetObjectData This method is used when serializing the tree.
Remove - Key This method removes the entry with the specified key.