没有有关问题，散分贴：如果你必须开发交互式页面，ViewState越大可能意味着越有本事

protected override object LoadPageStateFromPersistenceMedium(){    var viewStateID = (string)((Pair)base.LoadPageStateFromPersistenceMedium()).Second;    var stateStr = (string)Cache[viewStateID];    if (stateStr == null)    {        var fn = Path.Combine(this.Request.PhysicalApplicationPath, @"App_Data/ViewState/" + viewStateID);        stateStr = File.ReadAllText(fn);    }    return new ObjectStateFormatter().Deserialize(stateStr);}protected override void SavePageStateToPersistenceMedium(object state){    var value = new ObjectStateFormatter().Serialize(state);    var viewStateID = (DateTime.Now.Ticks + (long)this.GetHashCode()).ToString(); //产生离散的id号码    var fn = Path.Combine(this.Request.PhysicalApplicationPath, @"App_Data/ViewState/" + viewStateID);    ThreadPool.QueueUserWorkItem(obj => File.WriteAllText(fn, value));    Cache.Insert(viewStateID, value);    base.SavePageStateToPersistenceMedium(viewStateID);}

protected void Application_Start(object sender, EventArgs e){    var dir = new DirectoryInfo(this.Server.MapPath("~/App_Data/ViewState/"));    if (!dir.Exists)        dir.Create();    else    {        var nt = DateTime.Now.AddHours(-1);        dir.GetFiles().ForEach(f =>        {            if (f.CreationTime < nt)                f.Delete();        });    }}