/// <summary>
/// Called when [element change].
/// </summary>
/// <param name="source">The source.</param>
/// <param name="e">The <see cref="ElementChangeEventArgs{T}"/> instance containing the event data.</param>
private void OnElementChange(object source, ElementChangeEventArgs <T> e)
{
ElementChange?.Invoke(this, e);
}
private void Message(object sender, ElementChangeEventArgs <T> e)
{
Console.WriteLine($"Element [{e.IndexI},{e.IndexJ}] has changed from {e.ElementWas} to {e.ElementBecame}. ");
}