public override void Load()
{
_hiddenFiledPagePersister.Load();
string viewStateStr = _hiddenFiledPagePersister.ViewState as string; // Page.Request.Form[STATE_KEY];
trace.WriteTrace(TraceSeverity.InformationEvent, TraceCategory.Content, "View state: " + viewStateStr);
if (viewStateStr != null && viewStateStr.StartsWith(CacheKeyPrefix)) // state not inline check the cached state key
{
string state = LoadState(viewStateStr);
if (state == null)
{
trace.WriteTrace(TraceSeverity.CriticalEvent, TraceCategory.Content, "View state lost. Probably cached item expired.");
}
else
{
try
{
Pair data = (Pair)StateFormatter.Deserialize(state);
ViewState = data.First;
ControlState = data.Second;
}
catch
{
trace.WriteTrace(TraceSeverity.Exception, TraceCategory.Content, String.Format("Could not deserialize view state. View state is invalid."));
}
}
}
else
{
ViewState = _hiddenFiledPagePersister.ViewState;
ControlState = _hiddenFiledPagePersister.ControlState;
}
}
/// <summary>
/// Десериализация ViewState
/// </summary>
/// <param name="serializedViewState"></param>
protected void Deserialize(string serializedViewState)
{
object vsPair = StateFormatter.Deserialize(serializedViewState);
if (vsPair != null && (vsPair is Pair))
{
var myPair = vsPair as Pair;
ViewState = myPair.First;
ControlState = myPair.Second;
}
else
{
ViewState = vsPair;
}
}
/// <summary>
/// 加载ViewState。如果ViewState的尺寸小于配置信息中的值（缺省为10K），从隐藏域中加载，否则从数据库中加载
/// </summary>
public override void Load()
{
string data = this.Page.Request.Form["__VIEWSTATE"];
if (string.IsNullOrEmpty(data) == false)
{
#region 注释掉原有的逻辑
//Pair statePair = (Pair)StateFormatter.Deserialize(data);
//ControlState = statePair.Second;
//ViewState = statePair.First;
#endregion
long id;
if (long.TryParse(ViewState.ToString(), out id))
{
string stateStr = LoadStateFromDB(id);
ViewState = StateFormatter.Deserialize(stateStr);
}
}
}
protected override Object LoadPageStateFromPersistenceMedium()
{
Object state = null;
String clientViewStateString = _requestValueCollection[ViewStateID];
if (clientViewStateString != null)
{
_privateViewState =
StateFormatter.Deserialize(clientViewStateString) as Hashtable;
if (_privateViewState != null)
{
String[] arr = _privateViewState[PageClientViewStateKey] as String[];
if (arr != null)
{
_activeFormID = arr[0];
String id = arr[1];
if (id != null)
{
_sessionViewState.Load(this, id);
state = _sessionViewState.ViewState;
if (state == null)
{
OnViewStateExpire(EventArgs.Empty);
}
else
{
Object[] arrState = state as Object[];
if (arrState != null)
{
_privateViewState = (Hashtable)arrState[1];
state = arrState[0];
}
}
}
}
_privateViewState.Remove(PageClientViewStateKey);
// If the page had no view state, but had controls requiring postback,
// this information was saved in client view state.
Object controlsRequiringPostBack =
_privateViewState[_controlsRequiringPostBackKey];
if (controlsRequiringPostBack != null)
{
state = new Triplet(GetTypeHashCode().ToString(),
null,
controlsRequiringPostBack);
_privateViewState.Remove(_controlsRequiringPostBackKey);
}
// Apply whatever private view state can be applied now.
foreach (DictionaryEntry entry in _privateViewState)
{
if (entry.Value != null)
{
MobileControl ctl = FindControl((String)entry.Key) as MobileControl;
if (ctl != null)
{
ctl.LoadPrivateViewStateInternal(entry.Value);
}
}
}
}
}
_privateViewStateLoaded = true;
if (state == null)
{
// Give framework back an empty page view state
state = new Triplet(GetTypeHashCode().ToString(), null, null);
}
return(state);
}