2

I'm using the following C# code to add my layer dynamically on an ArcGIS silverlight application:

ArcGISDynamicMapServiceLayer mylayer = new ArcGISDynamicMapServiceLayer()
{
   ID = layerName,
   Url = mapServiceUrl,
 };
 mylayer.Initialize();
 mylayer.Initialized += mylayer _Initialized;
 mylayer.InitializationFailed += mylayer _Failed;
 myMap.Layers.Add(mylayer );

But when I try to get the spatial reference of the layer using:

SpatialReference sp = mylayer.SpatialReference;
int testww = sp.WKID;

I get an error "Object reference not set to an instance of an object." because mylayer.SpatialReference is Null.

Where am I going wrong?

2

To get the spatial reference of the layer ,Initialized event is useful, i.e. your "mylayer _Initialized" event.Have you tried that?

private void MyService_Initialized(object sender, EventArgs e)
{
Layer layer = sender as Layer;

//get spatial reference here...
}
  • I use mylayer_Initialized only for populating some comboboxes... How can I add to get spatia reference? – voimak Jun 14 '13 at 9:34

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