Waiting until resources are loaded [No Viruses detected]

[Tom Chadwin]

Hello all

I am opening a page in the task pane which queries feature data in the
current session map. However, this page loads quicker than the mapframe.
This means that exceptions are thrown in the task pane.

I have got around via a horrible solution which hammers the server:

try {
	MgInitializeWebTier($configFilePath);
	$userInfo = new MgUserInformation($mgSessionId);
	$siteConnection = new MgSiteConnection();
	$siteConnection->Open($userInfo);
	$resourceService =
$siteConnection->CreateService(MgServiceType::ResourceService);
	$featureService =
$siteConnection->CreateService(MgServiceType::FeatureService);
	$map = new MgMap();
	$map->Open($resourceService, $mapName);
} catch (MgException $e) {
	header("Location: nnpa_planning.php?SESSION=" . $mgSessionId .
"&nnpaRef=" . $_GET["nnpaRef"]);
}

In other words, if there is an exception, re-request the page. What is a
better way to do this? I have heard mention of a variable which
indicates whether the map has fully loaded, but is that not in the Web
API, and hence in Javascript, and not available to the server-side
script (in my case, PHP)?

Any help gratefully received.

Tom


Tom Chadwin
ICT & Web Development Officer
Telephone: 01434 611530 
Mobile: 
Fax: 01434 611677
Email: tom.chadwin at nnpa.org.uk
Web : www.Northumberland-national-park.org.uk <http://www.Northumberland-national-park.org.uk>

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