public void RemoveItem(long pk)
{
try
{
var t = TopItems.ToList();
for (int i = 0; i < t.Count; i++)
{
var lst = t[i].Items.ToList();
for (int j = 0; j < lst.Count; j++)
{
if (lst[j].User?.Pk == pk)
{
t[i].Items.RemoveAt(j);
if (t[i].Items.Count == 0)
{
TopItems.Remove(t[i]);
}
break;
}
}
}
}
catch { }
}