I am having issues with the editorwidget, I need to recalulate the area of a polygon when the editor widget edits the graphic. I am using the area and parimeter example: http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#AreasAndLengths and this thread: http://forums.arcgis.com/threads/25902-How-to-update-Acreage-field-after-edit-the-polygon-s-geometry... When I edit a graphic the AreasAndLength geometry service does not fire, how is it done? And yes I am new at the programing side. Privatevoid Editor_EditCompleted(object sender, Editor.EditEventArgs e) { if (e.Action == Editor.EditAction.EditVertices) { foreach (var edit in e.Edits) { ESRI.ArcGIS.Client.Geometry.Polygon polygon = e.Edits as ESRI.ArcGIS.Client.Geometry.Polygon; polygon.SpatialReference = map1.SpatialReference; Graphic graphic = newGraphic(); GeometryService geometryService = newGeometryService("http://geoservices.dnr.illinois.gov/ArcGIS/rest/services/Geometry/GeometryServer"); geometryService.AreasAndLengthsCompleted += GeometryService_AreasAndLengthsCompleted; geometryService.Failed += GeometryService_Failed; GraphicsLayer graphicsLayer = map1.Layers["Field Edit"] asGraphicsLayer; graphicsLayer.Graphics.Add(graphic); List<Graphic> graphicList = newList<Graphic>(); graphicList.Add(graphic); geometryService.AreasAndLengthsAsync(graphicList); // GeometryService.AreasAndLengths returns distances and areas in the units of the spatial reference. } } } Any help is greatly appreciated. Chad