private void RebuildTree()
{
var list = Loaded.ToDictionary(x => x.Id, x => x);
foreach (var careerObject in list.Values)
{
careerObject.NextCareerObject = null;
}
foreach (var career in list.Values)
{
var previous = (from id in career.RequiredSeries where list.ContainsKey(id) let entry = list[id] where entry.NextCareerObject == null select entry).ToList();
if (!previous.Any())
{
continue;
}
if (!career.RequiredAnySeries)
{
var p = previous[0];
foreach (var o in previous.Skip(1))
{
p.NextCareerObject = o;
}
}
foreach (var previousCareer in career.RequiredAnySeries ? previous : previous.TakeLast(1))
{
previousCareer.NextCareerObject = career;
}
}
}