topic Re: Setting Renderer on feature layer by code in ArcGIS API for Silverlight Questions

Setting Renderer on feature layer by code

MarcoRosa — Thu, 29 Jul 2010 14:49:17 GMT

Hi to all, i've this case:

if i set simple renderer on xaml this work fine ,

    <esri:SimpleRenderer x:Key="DefaultFillRenderer">
    <esri:SimpleRenderer.Symbol>
                    <esriSymbols:SimpleFillSymbol BorderBrush="Blue" Fill="#330000FF" />
                </esri:SimpleRenderer.Symbol>
            </esri:SimpleRenderer>

if i set renderer throught code does't work ....

FeatureLayer dyn_ftlyr = new FeatureLayer();
dyn_ftlyr.ID = "MyFeatureLayer";
dyn_ftlyr.ID = "MyUrl";

dyn_ftlyr.Renderer = LayoutRoot.Resources["DefaultFillRenderer"] as SimpleRenderer ;

Where is my error ? thankkkkssss

Re: Setting Renderer on feature layer by code

DominiqueBroux — Thu, 29 Jul 2010 16:48:42 GMT

dyn_ftlyr.ID = "MyUrl";

I guess it's just a typo and that you are initializing the Url method and not the ID

dyn_ftlyr.Renderer = LayoutRoot.Resources["DefaultFillRenderer"] as SimpleRenderer ;

Did you verify in debug that the renderer is not null?

Re: Setting Renderer on feature layer by code

MarcoRosa — Fri, 30 Jul 2010 07:00:57 GMT

hi dominique , that's true .... renderer its null.
it's wrong the way to set the renderer ?

Re: Setting Renderer on feature layer by code

DominiqueBroux — Fri, 30 Jul 2010 08:09:36 GMT

that's true .... renderer its null.
it's wrong the way to set the renderer ?

The Renderer can be set this way but it needs to be defined in the resources.
In your case, it looks like the "DefaultFillRenderer" is not defined in the resources of the Layout grid.