Developer's Guide - MapGuide Open Source - OSGeo

the
$layerClassName = $layer->GetFeatureClassName();
$selectionString = $selection->GenerateFilter(
$layer, $layerClassName);
// Get the feature resource for the selected layer
$layerFeatureId = $layer->GetFeatureSourceId();
$layerFeatureResource = new
MgResourceIdentifier($layerFeatureId);
// Apply the filter to the feature resource for the
// selected layer. This returns
// an MgFeatureReader of all the selected features.
$queryOptions->SetFilter($selectionString);
$featureReader = $featureService->SelectFeatures(
$layerFeatureResource, $layerClassName, $queryOptions);
// Process each item in the MgFeatureReader, displaying
// owner name and address
while ($featureReader->ReadNext())
{
$val = $featureReader->GetString('NAME') . ', ' .
$featureReader->GetString('RPROPAD');
echo $val . '';
}
}
}
}
else
echo 'No selected layers';
Example: Listing Selected Parcels (DWF Viewer)
The steps for listing the selected parcels for the DWF Viewer are nearly the
same as for the AJAX Viewer. The major difference is you must pass the
selection information from the Viewer to your page.
One method to do this is to create a JavaScript function, then call this function
from the Viewer using an Invoke Script command. In an HTML page that
includes an embedded Viewer, add the following JavaScript function:
Working With the Active Selection | 49