[mapguide-users] Selection Issue (FeatureReader only grabbing 20items)

[Maksim Sestic]

Yes, happens to me too here and there. No exceptions thrown, no errors
reported. I'm not talking to MG via XML (did that before), rather via JSON
web services being called from client's JavaScript. I also noticed described
reader mishaps while using Autodesk's MS SQL provider. What RDBMS are you
using?

Regards,
Maksim Sestic
 

-----Original Message-----
From: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of nclayton
Sent: Monday, July 21, 2008 17:25
To: mapguide-users at lists.osgeo.org
Subject: [mapguide-users] Selection Issue (FeatureReader only grabbing
20items)


Hi all,
This has just recently become a problem. I am passing the selection xml to a
page to display parcel owner data. For an example, I select 256 parcels on
the map. The selection xml comes over fine, with all 256 parcels listed.
When I use a featureReader to get the parcel numbers from the features, It
only get the first 20.

Is this a setting I may have altered unintentionally, or could there be more
to it?

Here is the code that I am using to pull the information out from the
selection xml:
========================================================================
function GetObjKeys($sessId,$mapName,$sel){
  $obj_keys = '';
    if($sel != ''){
      InitializeWebTier();
      $userInfo = new MgUserInformation($sessId);
      $siteConnection = new MgSiteConnection();
      $siteConnection->Open($userInfo);
      $resourceService =
$siteConnection->CreateService(MgServiceType::ResourceService);
      $featureService =
$siteConnection->CreateService(MgServiceType::FeatureService);	
      $map = new MgMap($siteConnection);
      $map->Open($resourceService,$mapName);		
      $selection = new MgSelection($map,$sel);
      if($selection != ''){
        $layers = $selection->GetLayers();
        if(!$layers){ $layers = $map->GetLayers(); }
      }else{ $layers = 0; }
      $layer = null;
      if($layers){
      for($i = 0; $i < $layers->GetCount(); $i++){
        if($layers->GetItem($i)->GetName() == "parcels"){ $layer =
$layers->GetItem($i); }
      }
      $queryOptions = new MgFeatureQueryOptions();
      if($layer){
        $layerClassName = $layer->GetFeatureClassName();
        if($sel != ''){ $selString =
$selection->GenerateFilter($layer,$layerClassName); }
        $layerFeatureId = $layer->GetFeatureSourceId();
        $layerFeatureResource = new MgResourceIdentifier($layerFeatureId);
        $layerId = $layer->GetObjectId();
        $queryOptions->SetFilter($selString);
        $featureReader =
$featureService->SelectFeatures($layerFeatureResource,$layerClassName,$query
Options);				
        $selTmp = '';
        for($pdx=0; $pdx<$featureReader->GetPropertyCount(); $pdx++){
          $pnm = $featureReader->GetPropertyName($pdx);
          if($pnm == 'PARCEL_ID_'){ break; }
          if($pnm == 'PARCELID'){ break; }
          if($pnm == 'Key'){ break; }
          $pnm = "";
        }
        if($pnm != ""){
          while($featureReader->ReadNext()){
            $stg = $featureReader->GetString($pnm);
            if($stg != ""){	$obj_keys .= "'" . $stg . "'"; }
          }
        }
        $obj_keys = str_replace("''","','",$obj_keys);
      }
    }	
    return $obj_keys;
  }else{ return ''; }
}
--
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