Hi, As we all know there is a online SDK Sample about the CutAsync method in GeometryService class in the following URL: http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#EditToolsExplicitSave The sample use the Freehand Property in Editor class to enable people to draw a polyline.People can use the New Selection button to select the feature(graphic) and then use the Cut Selected button to draw a polyline acrossing the selected feature to cut the selected feature using the Cut[ATTACH=CONFIG]26136[/ATTACH]Async method in GeometryService. The fuction that I want to realize is that:when people input two points on a polyline the polyline will be cutted and the feature between the two points will be deleted too. I used the CutAsync method in GeometryService to execute the cut fuction.The parameters I used for CutAsync method are: the inputting two points to construct a polyline as the cutter and using a selected polyline as the target that would be cutted.Sometimes the selected polyline may be a simple polyline and sometimes it may be a complicated polyline . When I used the CutAsync method to cut the target polyline,the polyline had been cutting correctly but in the method GeometryService_CutCompleted(object sender, CutEventArgs e)I cannot find which is the correctly grahic in e.Results that I want to delete,which is the graphic that between the two people inputting points ,sometimes e.Results.count is four and the e.Results.count is six I cannot konw which index in the e.Results is the one that I want to use to delete the grahic .Can someone give me some suggestions? Thank you very much. Tom