Morning Terence,
Here is how I am querying a feature in a layer and then zooming to it. You will need to pass the layer name and search string for the IQueryFilter to match your layer feaure properties.
public void listPerformZoom(String layerName, String searchString) throws AutomationException, IOException{
Map map = (Map)mxDocument.getFocusMap();
IFeatureLayer pLayer = null;
IActiveView pActiveView = (IActiveView) map;
try {
map.clearSelection();
} catch (AutomationException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
try{
pLayer = (IFeatureLayer) gpUtils.findMapLayer(layerName);
} catch(AutomationException e){}
if (pLayer != null){
IFeatureSelection featureSelection = (IFeatureSelection) pLayer;
if (featureSelection != null){
IQueryFilter pQF = new QueryFilter();
String query = String.format("RECORD_KEY = '%s'", searchString); // Search Query String
pQF.setWhereClause(query);
featureSelection.selectFeatures(pQF, esriSelectionResultEnum.esriSelectionResultNew, true);
pActiveView.partialRefresh(esriViewDrawPhase.esriViewGeoSelection, pLayer, null);
MapSelection pMapSel = new MapSelection(map.getFeatureSelection());
pMapSel.reset();
IFeature pFeature = pMapSel.next();
IGeometry pGeom = pFeature.getShape();
IEnvelope pEnv;
if (pGeom instanceof IPoint){
pEnv = pGeom.getEnvelope();
pEnv.expand(100, 100, false); // This is the extent of the zoom if a point feature is found
pActiveView.setExtent(pEnv);
} else {
pEnv = pGeom.getEnvelope();
pActiveView.setExtent(pEnv);
}
pActiveView.refresh();
}
featureSelection = null;
}
}Hope that helps,
Owain
