以下代碼位于AppStateManager.cs文件中：

// Restore the state
??????? public override void RestoreState()
??????? {
??????????? string mapAlias = ParamsDictionary[ActiveMapAliasKey] as string;

??????????? Map map = GetMapObj(mapAlias);
??
??????????? // If it was user's first time and the session was not dirty then save this default state to be applied later.
??????????? // If it was a users's first time and the session was dirty then apply the default state saved in above step to give users a initial state.
??????????? if (IsUsersFirstTime())
??????????? {
??????????????? if (IsDirtyMapXtremeSession(map))
??????????????? {

??????????????????? RestoreDefaultState(map);

??????????????? }
??????????????? else
??????????????? {

??????????????????? SaveDefaultState(map);

??????????????? }
??????????? }
??????????? else
??????????? {
??????????????? // If it is not user's first time then restore the last state they saved
??????????????? RestoreZoomCenterState(map);

???????????????? //恢復(fù)臨時(shí)圖層Animation的狀態(tài)

??????????????? if (HttpContext.Current.Session["Animation" + "Layer"] != null)
?????????????? {
?????????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Animation" + "Table");
?????????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Animation" + "Layer");
??????????????? }

????????????? //恢復(fù)標(biāo)注圖層jcbz的狀態(tài)

??????????????? if (HttpContext.Current.Session["jcbz" + "Layer"] != null)

??????????????????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession("jcbz" + "Layer");

????? ????????? //恢復(fù)臨時(shí)圖層Tm的狀態(tài)

??????????????????????????? if (HttpContext.Current.Session["Tm" + "Layer"] != null)
??????????????? {
??????????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Tm" + "Table");
??????????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Tm" + "Layer");
??????????????? }

?????????????????????????????? // Just by setting it to temp variables the objects are serialized into session. There is no need to set them explicitly.
??????????????? for (int i = 0; i < map.Layers.Count ;i++ )

?????????????????????? if(map.Layers[i]!=null)????????????????? //必須加這條語(yǔ)句，否則老是在這里出現(xiàn)錯(cuò)誤

?????????????????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession(map.Layers[i].Name+"Layer");

????????????????????? //恢復(fù)地圖中選中的圖元對(duì)象

??????????????? ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Selection");

??????????? }
??????? }

??????? // Save the state
??????? public override void SaveState()
??????? {
??????????? string mapAlias = ParamsDictionary[ActiveMapAliasKey] as string;

??????????? Map map = GetMapObj(mapAlias);

??????????? if (map != null)
??????????? {
??????????????? SaveZoomCenterState(map);

????????????? //判斷地圖中是否有Animation圖層，有的話保存狀態(tài)

??????????????? if (map.Layers["Animation"] != null)
??????????????? {
??????????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(MapInfo.Engine.Session.Current.Catalog["Animation"], "Animation" + "Table");
??????????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(map.Layers["Animation"], "Animation" + "Layer");
??????????????? }

???????????? //判斷地圖中是否有Tm圖層，有的話保存狀態(tài)

??????????????? if (map.Layers["Tm"] != null)
??????????????? {
??????????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(MapInfo.Engine.Session.Current.Catalog["Tm"], "Tm" + "Table");
??????????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(map.Layers["Tm"], "Tm" + "Layer");
??????????????? }

?????????????? //遍歷各圖層，有層名為jcbz的層則保存該標(biāo)注圖層的狀態(tài)

??????????????? for (int i = 0; i < map.Layers.Count; i++)

??????????????????? if (map.Layers[i].Name == "jcbz")
??????????????????? {
????????????????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(map.Layers[i], "jcbz" + "Layer");
??????????????????????? break;
??????????????????? }

??????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(map.Layers, "Layers");

??????????????? ManualSerializer.SaveMapXtremeObjectIntoHttpSession(MapInfo.Engine.Session.Current.Selections.DefaultSelection, "Selection");

??????????? }
??????? }

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