PicutreMarkerSymbol does not work but SimpleMarkerSymbol does

Question

I thought I'd seen a fix for this last week in the forums but can't find it today! I'm trying to add a graphic to a graphics layer using an image defined in Resources of my user control but if I use a PictureMarkerSymbol nothing draws whereas a SimpleMarkerSymbol does. The ESRI Identify sample uses a PictureMarkerSymbol so I know it's possible. I have a user control that a user can enter a Lat-Long and the map will zoom to it and (should) add a graphic at the local they entered. I'm wondering if it's a location issue - my control is /UserControls/ZoomToXY and references a PNG in /UserControls/Images as the source for the PictureMarkerSymbol. I've tried putting the PNG up a level in the /Images folder but that doesn't seem to solve the problem either. Anyone know what I'm missing? Thanks, Terry XAML for resources: Code behind: //add graphic to map GraphicsLayer graphicsLayer = (GraphicsLayer)_Map.Layers[_GraphicsLayer]; graphicsLayer.ClearGraphics(); //this does not work Graphic graphic = new Graphic() { Geometry = ptMapPoint, Symbol = DefaultPictureSymbol }; graphicsLayer.Graphics.Add(graphic); //using a SimpleMarkerSymbol works Graphic graphic2 = new Graphic() { Geometry = ptMapPoint, Symbol = SMStest }; graphicsLayer.Graphics.Add(graphic2); solution.png MillerWang_1-1638667991596.png

SomeGISGuy · Answer

The difference lies in whether the xaml is parsed as part of the page (where relative makes sense), or whether it's a piece of code that could have been executed from anywhere.

TerryGiles · Answer

Hi Morten, Thank you, chaning the path in the XAML fixed it. I'm still a little confused as to how path references work in the XAP. Why does it need the "../UserControls" in the source string - the ZoomToXY.xaml is in the UserControls folder but neither "/Images/IdentifyMapIcon.png" nor "./IdentifyMapIcon.png" work in the controls xaml but it did work in code - Graphic graphic = new Graphic() { Geometry = ptMapPoint, //Symbol = DefaultPictureSymbol Symbol = new PictureMarkerSymbol() { Source = new BitmapImage(new Uri("Images/IdentifyMapIcon.png", UriKind.Relative)), OffsetX=12, OffsetY=24 } }; Thanks again, Terry

SomeGISGuy · Answer

Note that "/Images/IdentifyMapIcon.png" is relative to where the .xap file is, not where the hosting html file is.