/// <summary>
/// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1"></see>.
/// </summary>
/// <exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"></see> is read-only. </exception>
public void Clear()
{
tree = null;
count = 0;
}
/// <summary>
/// Finds the min node.
/// </summary>
/// <param name="startNode">The start node.</param>
/// <param name="parent">The parent of the node found.</param>
/// <returns>The minimum node underneath the node specified. If the node specified is a leaf node, it is returned.</returns>
private BinaryTree <Association <TKey, TValue> > FindMinNode(BinaryTree <Association <TKey, TValue> > startNode, out BinaryTree <Association <TKey, TValue> > parent)
{
#region Asserts
Debug.Assert(startNode != null);
#endregion
BinaryTree <Association <TKey, TValue> > searchNode = startNode;
parent = null;
while (searchNode.Left != null)
{
parent = searchNode;
searchNode = searchNode.Left;
}
return(searchNode);
}