After putting measure action in code, which code show meansure action is completed?

Question

Hi all,

I have put the measure action in code-behind. MyMeasureAction m = new MyMeasureAction();  //initialize a MyMeasureAction class
            m.MeasureMode = ESRI.ArcGIS.Client.Actions.MeasureAction.Mode.Polygon;  //MeasureMode is polygon
            m.DisplayTotals = false;    //do not display total distance
            m.FillSymbol = LayoutRoot.Resources["DrawFillSymbol"] as FillSymbol;
            m.DistanceUnit = ESRI.ArcGIS.Client.Actions.DistanceUnit.Feet;
            m.MapUnits = ESRI.ArcGIS.Client.Actions.DistanceUnit.Feet;  //the unit of the map is Feet
            m.Attach(MyMap);    //bind this action to MyMap
            m.Execute();    //execute this action

But I don't know which piece of codes show that the measure action is completed. Dose it exist some function like measreCompleted event? I didn't find it in API.

Since I want to return the cursor to hand shape and return to pan mode after finishing this measure action, I want to know where I can add the codes....
Thank you all!:)

JenniferNery · Answer

It is by design that the graphics created by MeasureAction are removed from the map upon completion.

However, this related thread might help preserve the graphics on the map: http://forums.arcgis.com/threads/13902-about-after-using-measure-behavior-the-graph-can-t-stay-in-the-map

DidarBultanov · Answer

You are right, there is no event raised when MeasureAction is complete. If you notice in the SDK sample, measure is completed when a DoubleClick is detected. This is when graphics are cleared from the map, which might be a good time to re-enable the pan cursor.
Point lastClick;
private void Map_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
 Point pt = e.GetPosition(null);
 if (Math.Abs(pt.X - lastClick.X) < 2 && Math.Abs(pt.Y - lastClick.Y) < 2)
 {
  //TODO: change cursor here
 }
 lastClick = pt;
}

how to make that graphics would be kept on the maps?
Tanks

DanDong · Answer

You are right, there is no event raised when MeasureAction is complete. If you notice in the SDK sample, measure is completed when a DoubleClick is detected. This is when graphics are cleared from the map, which might be a good time to re-enable the pan cursor.
Point lastClick;
private void Map_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
 Point pt = e.GetPosition(null);
 if (Math.Abs(pt.X - lastClick.X) < 2 && Math.Abs(pt.Y - lastClick.Y) < 2)
 {
  //TODO: change cursor here
 }
 lastClick = pt;
}

Thank you Jennifer! I also try to change cursor shape in LayerCollectionChanged event. That also works.