在ForLoop中将任务添加到Tasklist

我需要向多个服务器发送请求,并尝试使用任务异步运行每个连接。我有一个配置为进行连接的函数:

 internal static Task<EventRecordEx> GetEventRecordFromServer(string server, string activityID)

var taskList = new List<Task<EventRecordEx>>();
foreach (string server in server_list)
{
    taskList.Add(GetEventRecordFromServer(server, id));
}
await Task.Factory.ContinueWhenAll(taskList.ToArray(), completedTasks =>
{
    foreach (var task in completedTasks)
    {  
        // do something with the results
    }
});

我做错什么了?