// Recursively deletes every child timeline and exhibit (with references and content items) form timeline with given guid.
public void DeleteTimeline(Guid id)
{
var timelineIDs = GetChildTimelinesIds(id); // list of ids of child timelines
var exhibitIDs = GetChildExhibitsIds(id); // list of ids of exhibits
// recursively delete timelines
while (timelineIDs.Count != 0)
{
DeleteTimeline(timelineIDs.First());
timelineIDs.RemoveAt(0);
}
// recursively delete exhibits
while (exhibitIDs.Count != 0)
{
DeleteExhibit(exhibitIDs.First());
exhibitIDs.RemoveAt(0);
}
Timeline removeTimeline = Timelines.Find(id);
Timelines.Remove(removeTimeline);
}
