Writing Custom Legend - Get order of layers in map

JustinCornell

I'm writing a custom legend, one that looks and functions just like the silverlight legend.  I have everything working except the order of the layers.  How can I get the order of the layers in the map?

From what I can figure out, there are two properties on the Map that give the layers in the map.  Those properties are Map.layerIds and Map.graphicsLayerIds but there is not a single property that gives the order of the map layers.  I don't know how to tell if a graphics layer was added before or after a given non-graphic layer.  I know I can add a Map.on('layer-add', function(args){..}); but I am hoping not to do that as I cannot guarantee the map is assigned to the legend before layers are added. How can I get the order of the map layers?

Any help would be great!

Vara_PrasadM_S

Hi Justin Cornell,

In JS API, below is the order of the type of layers added/rendered on map.

1. Graphic Layers (Top)

2. Dynamic Map Services

3. Tiled Map Services (Bottom)

We can re order a Graphic Layer only among the graphic layers added to the map.

Thanks & Regards,

Vara Prasad.