public void Create(ActivityItem item)
{
if (ActivityItems.Count < 1)
{
List <int> indices = ActivityItems.ConvertAll((iter) => iter.ID);
indices.Sort();
item.ID = indices.Last();
}
ActivityItems.Add(item);
}
public Task UpdateAsync(ActivityItem item)
{
return(Task.Run(() => Update(item)));
}
public void Update(ActivityItem item)
{
int index = ActivityItems.FindIndex((iter) => iter.ID == item.ID);
ActivityItems[index] = item;
}
