// 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
{
AppStateManager.RestoreZoomCenterState(myMap);
ManualSerializer.RestoreMapXtremeObjectFromHttpSession("mdb_table");
ManualSerializer.RestoreMapXtremeObjectFromHttpSession("theme_table");
ManualSerializer.RestoreMapXtremeObjectFromHttpSession("theme_layer");
ManualSerializer.RestoreMapXtremeObjectFromHttpSession("group_layer");
// Important Note:
// The saved theme layer, group layer and tables get restored automatically by ASP.NET serialization.
// By the time this method is called, this has already happened.
// We need to move the GroupLayer to the Top, so the contents within it could be displayed.
// This step is necessary since the GroupLayer is created on the fly and not loaded through pre-loaded workspace and
// the position of the groupLayer inside the Layers collection is not guarantee when it get deserialized back
// since we don't save the whole Layers collection for performance purpose in this sample.
int indexOfGroupLayer = myMap.Layers.IndexOf(myMap.Layers[SampleConstants.GroupLayerAlias]);
if (indexOfGroupLayer > 0)
{
myMap.Layers.Move(indexOfGroupLayer, 0);
// Need to turn off other labellayer if we have a demo labellayer in the GroupLayer.
// This step is needed if "MapInfo.Engine.Session.Pooled" value="false" in the web.config,
// Otherwise you would see other LabelLayers show up on the map.
WebForm1.HandleLabelLayerVisibleStatus(myMap);
}
}
}
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. //
//************************************************************//
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 from different class and requests.
AppStateManager.PutStateManagerInSession(stateManager);
InitState();
}
MapInfo.WebControls.StateManager.GetStateManagerFromSession().RestoreState();
PrepareData();
}
private 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. //
//************************************************************//
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 from different class and requests.
AppStateManager.PutStateManagerInSession(stateManager);
InitState();
}
MapInfo.WebControls.StateManager.GetStateManagerFromSession().RestoreState();
PrepareData();
}
