/// <summary>
/// Sort Playlist by Rally-Number
/// </summary>
public void Sort()
{
List <Guid> sorted = rallyIDs.OrderBy(x => match.Rallies.Where <Rally>(r => r.ID == x).FirstOrDefault <Rally>().Number).ToList();
int ptr = 0;
while (ptr < sorted.Count)
{
if (!rallyIDs[ptr].Equals(sorted[ptr]))
{
Guid t = rallyIDs[ptr];
rallyIDs.RemoveAt(ptr);
rallyIDs.Insert(sorted.IndexOf(t), t);
}
else
{
ptr++;
}
}
}