压缩视图状态之ajax(atlas)修正版

很早以前就有老外的这篇http://www.codeproject.com/aspnet/ViewStateCompression.asp

博客园译文地址:  http://www.cnblogs.com/dingsea/archive/2006/11/25/571646.html 极地银狐

事实上在atlas下这个方案是有问题的.

勿需废话,贴出修正代码:

 /**//// <summary>
    /// 对视图状态进行了压缩的Page
    /// </summary>
    public class ViewStateCompressPage : Page
    {
        对视图状态压缩#region 对视图状态压缩
        protected override void SavePageStateToPersistenceMedium(Object pViewState)
        {
            Pair pair1;
            System.Web.UI.PageStatePersister pageStatePersister1 = this.PageStatePersister;
            Object ViewState;
            if (pViewState is Pair)
            {
                pair1 = ((Pair)pViewState);
                pageStatePersister1.ControlState = pair1.First;
                ViewState = pair1.Second;
            }
            else
            {
                ViewState = pViewState;
            }

            LosFormatter mFormat = new LosFormatter();
            StringWriter mWriter = new StringWriter();

            mFormat.Serialize(mWriter, ViewState);
            String mViewStateStr = mWriter.ToString();

            byte[] pBytes = System.Convert.FromBase64String(mViewStateStr);

            pBytes = Compressor.CompressZipLib(pBytes);

            String vStateStr = System.Convert.ToBase64String(pBytes);

            pageStatePersister1.ViewState = vStateStr;

            pageStatePersister1.Save();

            //ClientScript.RegisterHiddenField("__MSPVSTATE", vStateStr);

        }

        protected override Object LoadPageStateFromPersistenceMedium()
        {
            System.Web.UI.PageStatePersister pageStatePersister1 = this.PageStatePersister;
            //try
            //{
            pageStatePersister1.Load();
            //}
            //catch 
            //{
            //    return null;
            //}

            String vState = pageStatePersister1.ViewState.ToString();

            byte[] pBytes = System.Convert.FromBase64String(vState);

            pBytes = Compressor.DeCompressZipLib(pBytes);

            LosFormatter mFormat = new LosFormatter();

            Object ViewState = mFormat.Deserialize(System.Convert.ToBase64String(pBytes));

            return new Pair(pageStatePersister1.ControlState, ViewState);
        }

        #endregion
    }