Get the spatial reference of an ArcGIS layer with C#

Question

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?

Answer 1

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...
}

• voimak: I use mylayer_Initialized only for populating some comboboxes... How can I add to get spatia reference?