[mapguide-users] hide layer on box checked

[Kenneth, GEOGRAF A/S]

I assume that you do know that the code below is in Java/JSP and not 
javascript.

The resourceService is created from the site, with CreateService.

I just tried to find the example in the HTML version of the manual, with 
no luck, try the PDF version instead:
http://mapguide.osgeo.org/files/mapguide/docs/MgOpenSourceDevGuide.pdf

Page 36:

MgInitializeWebTier ($webconfigFilePath);
 
$userInfo = new MgUserInformation($mgSessionId);
$siteConnection = new MgSiteConnection();
$siteConnection->Open($userInfo);
 
$resourceService =
  $siteConnection->CreateService(MgServiceType::ResourceService);
 
$map = new MgMap();
$map->Open($resourceService, $mgMapName);
$layers = $map->GetLayers();
$roadLayer = $layers->GetItem('Roads');
$roadLabel = $roadLayer->GetLegendLabel();
if ($roadLabel == 'Roads')
$newLabel = 'Streets';
else
$newLabel = 'Roads';
$roadLayer->SetLegendLabel($newLabel);
// You must save the updated map or the
// changes will not be applied
// Also be sure to refresh the map on page load.
$map->Save($resourceService);

On-top-of-my-head translation to jsp:


MgInitializeWebTier (webconfigFilePath);
 
MgUserInformation userInfo = new MgUserInformation(mgSessionId);
MgSiteConnection siteConnection = new MgSiteConnection();
siteConnection.Open(userInfo);
 
MgResourceService resourceService =
  siteConnection.CreateService(MgServiceType::ResourceService);
 
MgMap map = new MgMap();
map.Open(resourceService, mgMapName);
MgLayerCollection layers = map.GetLayers();
MgLayer roadLayer = layers.GetItem('Roads');
roadLabel = roadLayer.GetLegendLabel();

String newLabel;
if (roadLabel == "Roads")
newLabel = "Streets";
else
newLabel = "Roads";
roadLayer.SetLegendLabel(newLabel);
// You must save the updated map or the
// changes will not be applied
// Also be sure to refresh the map on page load.
map.Save(resourceService);

Regards, Kenneth, GEOGRAF A/S



dorra2007 skrev:
> Hi all;
> I have read several posts about the setvisible function, but I have still
> errors in my code  (I am using javascript/jsp).
>
> Can someone give me a comprhensive code in javascript, wich show how i can
> use the SetVisible method?
> PS: My featuresource is a postgis database.
>
> here is the code i used:
>
> map=new MgMap();
> map.open(resourceService,map_name);
> layer=map.GetLayers().GetItem(layer_name);
> layer.SetVisible(true);
> map.save(resourceService);
>
> the resourceService is not defined. In fact, what does it refers to?And how
> can I define it?Should I create a map object?..
>
> Many question, can someone help me?
>
> Thank you in advance.
>