ArcGISWindowsPhoneSDK.BufferQuery.myDrawObject_DrawComplete C# (CSharp) 메소드

        void myDrawObject_DrawComplete(object sender, DrawEventArgs e)
        {
            _geometryService.CancelAsync();
            _queryTask.CancelAsync();

            Graphic clickGraphic = new Graphic();
            clickGraphic.Symbol = LayoutRoot.Resources["DefaultMarkerSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol;
            clickGraphic.Geometry = e.Geometry;
            // Input spatial reference for buffer operation defined by first feature of input geometry array
            clickGraphic.Geometry.SpatialReference = MyMap.SpatialReference;

            _pointAndBufferGraphicsLayer.ClearGraphics();
            _resultsGraphicsLayer.ClearGraphics();

            clickGraphic.SetZIndex(2);
            _pointAndBufferGraphicsLayer.Graphics.Add(clickGraphic);

            // If buffer spatial reference is GCS and unit is linear, geometry service will do geodesic buffering
            ESRI.ArcGIS.Client.Tasks.BufferParameters bufferParams = new ESRI.ArcGIS.Client.Tasks.BufferParameters()
            {
                BufferSpatialReference = new SpatialReference(4326),
                OutSpatialReference = MyMap.SpatialReference,
                Unit = LinearUnit.Meter,
            };
            bufferParams.Distances.Add(100);
            bufferParams.Features.Add(clickGraphic);

            _geometryService.BufferAsync(bufferParams);
        }