// Restore the state
public override void RestoreState()
{
string mapAlias = ParamsDictionary[ActiveMapAliasKey] as string;
Map myMap = 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())
{
RestoreDefaultState(myMap);
}
else
{
SaveDefaultState(myMap);
}
}
else
{
if (myMap == null)
{
return;
}
// Restore everything we saved explictly.
AppStateManager.RestoreZoomCenterState(myMap);
ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Catalog");
ManualSerializer.RestoreMapXtremeObjectFromHttpSession("Layers");
}
}
// Save the state
public override void SaveState()
{
string mapAlias = this.ParamsDictionary[AppStateManager.ActiveMapAliasKey] as String;
MapInfo.Mapping.Map map = GetMapObj(mapAlias);
if (map == null)
{
return;
}
// 1. Only if the MapInfo.Engine.Session.State is set to "Manual" in the web.config,
// We manually save objects below.
// 2. The MapInfo Session object will be automatically saved and you need to do nothing,
// if the MapInfo.Engine.Session.State is set to HttpSessionState.
AppStateManager.SaveZoomCenterState(map);
ManualSerializer.SaveMapXtremeObjectIntoHttpSession(MapInfo.Engine.Session.Current.Catalog, "Catalog");
ManualSerializer.SaveMapXtremeObjectIntoHttpSession(map.Layers, "Layers");
}
protected void Page_Load(object sender, System.EventArgs e)
{
// The first time in
if (Session.IsNewSession)
{
//******************************************************************************//
//* You need to follow below lines in your own application in order to *//
//* save state manually. *//
//* You don't need this state manager if the "MapInfo.Engine.Session.State" *//
//* in the web.config is not set to "Manual" *//
//******************************************************************************//
if (AppStateManager.IsManualState())
{
AppStateManager stateManager = new AppStateManager();
// tell the state manager which map alias you want to use.
// You could also add your own key/value pairs, the value should be serializable.
stateManager.ParamsDictionary[AppStateManager.ActiveMapAliasKey] = this.MapControl1.MapAlias;
// Put state manager into HttpSession, so we could get it later on.
AppStateManager.PutStateManagerInSession(stateManager);
}
// Initialize map setting.
InitState();
// WarningLabel is invisible in the init state
WarningLabel.Visible = false;
}
// Restore state.
if (MapInfo.WebControls.StateManager.IsManualState())
{
MapInfo.WebControls.StateManager.GetStateManagerFromSession().RestoreState();
}
if (!IsPostBack)
{
// DataBind named connection names to RadioButtonList.
CheckBoxList1.DataSource = MapInfo.Engine.Session.Current.Catalog.NamedConnections.Keys;
CheckBoxList1.DataBind();
// Populate aliases of opened tables to Repeater web control.
BindOpenedTablesAliasToRepeater();
}
}
protected void Page_Load(object sender, System.EventArgs e)
{
// The first time in
if (Session.IsNewSession)
{
//******************************************************************************//
//* You need to follow below lines in your own application in order to *//
//* save state manually. *//
//* You don't need this state manager if the "MapInfo.Engine.Session.State" *//
//* in the web.config is not set to "Manual" *//
//******************************************************************************//
if(AppStateManager.IsManualState())
{
AppStateManager stateManager = new AppStateManager();
// tell the state manager which map alias you want to use.
// You could also add your own key/value pairs, the value should be serializable.
stateManager.ParamsDictionary[AppStateManager.ActiveMapAliasKey] = this.MapControl1.MapAlias;
// Put state manager into HttpSession, so we could get it later on.
AppStateManager.PutStateManagerInSession(stateManager);
}
// Initialize map setting.
InitState();
// WarningLabel is invisible in the init state
WarningLabel.Visible = false;
}
// Restore state.
if(MapInfo.WebControls.StateManager.IsManualState())
{
MapInfo.WebControls.StateManager.GetStateManagerFromSession().RestoreState();
}
if(!IsPostBack)
{
// DataBind named connection names to RadioButtonList.
CheckBoxList1.DataSource = MapInfo.Engine.Session.Current.Catalog.NamedConnections.Keys;
CheckBoxList1.DataBind();
// Populate aliases of opened tables to Repeater web control.
BindOpenedTablesAliasToRepeater();
}
}