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Zoom to selected feature(s)

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Here is the sample code you can use to zoom to selected features. Please replace m_hookHelper with valid mapcontrol object.

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  1. public void ZoomToSelectedFeatures()
  2.         {
  3.             ESRI.ArcGIS.Carto.IActiveView pActiveView;
  4.             ESRI.ArcGIS.Carto.IMap pMap;
  5.             ESRI.ArcGIS.Geodatabase.IEnumFeature pEnumFeature;
  6.             ESRI.ArcGIS.Geodatabase.IFeature pFeature;
  7.  
  8.             pMap = (IMap)m_hookHelper.FocusMap;
  9.             pEnumFeature = (IEnumFeature)pMap.FeatureSelection;
  10.             pFeature = pEnumFeature.Next();
  11.  
  12.             ESRI.ArcGIS.Geometry.IEnvelope pEnvelope;
  13.             pEnvelope = new EnvelopeClass();
  14.  
  15.             while (pFeature != null)
  16.             {
  17.                 pEnvelope.Union(pFeature.Shape.Envelope);
  18.                 pFeature = pEnumFeature.Next();
  19.             }
  20.  
  21.             pEnvelope.Expand(1.2, 1.2, true);
  22.             pActiveView = m_hookHelper.ActiveView;
  23.             pActiveView.Extent = pEnvelope;
  24.             pActiveView.Refresh();
  25.         }

URL: http://forums.esri.com/Thread.asp?c=159&f=1707&t=233785

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