/// <summary>
/// Indicates that series is using an axis.
/// </summary>
/// <param name="value">The series using the axis.</param>
internal void Register(object value)
{
Debug.Assert(value != null, "object cannot be null.");
Debug.Assert(!RegisteredObjects.Contains(value), "object has already been registered with the axis.");
RegisteredObjects.Add(value);
IsUsed = true;
OnObjectRegistered(value);
}
/// <summary>
/// Indicates that a series is no longer using an axis.
/// </summary>
/// <param name="value">The series no longer using the axis.</param>
internal void Unregister(object value)
{
Debug.Assert(value != null, "object cannot be null.");
Debug.Assert(RegisteredObjects.Contains(value), "object is not registered with the axis.");
RegisteredObjects.Remove(value);
if (RegisteredObjects.Count == 0)
{
IsUsed = false;
}
OnObjectUnregistered(value);
}