怎么去除viewstate那些乱码呢？？？如果直接关掉的话，好多服务器控件功能就不管用了，大家来帮我解决一下吧，谢谢了

第一种方法，存到服务器上，这种方法会产生许多垃圾文件，不可取

protected override object LoadPageStateFromPersistenceMedium()
{

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

第二种方法不知道session会不会丢失，如果丢失了肯定会有影响，怎么办？？

protected LosFormatter losFormatter = new LosFormatter();

protected override object LoadPageStateFromPersistenceMedium()
{
string key = Request.RawUrl + "__viewstate";

if (Session[key] != null)
{
object obj = null;
using (System.IO.MemoryStream stream = (System.IO.MemoryStream)Session[key])
{
stream.Seek(0, System.IO.SeekOrigin.Begin);
obj = losFormatter.Deserialize(stream);
}
Session[key] = null;
return obj;
}

return null;
}

protected override void SavePageStateToPersistenceMedium(object viewState)
{
string key = Request.RawUrl + "__viewstate";
System.IO.MemoryStream stream = new System.IO.MemoryStream();
losFormatter.Serialize(stream, viewState);
stream.Flush();
Session[key] = stream;

}

其他更好的解决办法？？