Exemplo n.º 1
0
 public async Task Rollback()
 {
     if (CurrentPath.ContainsKey(Context.ConnectionId) &&
         CurrentPath[Context.ConnectionId]?.Path?.Length > 0)
     {
         await UpdateCurrent(new PathData());
     }
     else
     {
         lock (lockObj) {
             var target = HistoryPaths.LastOrDefault();
             if (target == null)
             {
                 return;
             }
             HistoryPaths.Remove(target);
             Clients.All.SendAsync("removeLastHistory").GetAwaiter().GetResult();
         }
     }
 }