topic Re: Getting Layers within a GroupLayer that contains other GroupLayers in ArcGIS Runtime SDK for WPF (Retired) Questions

Getting Layers within a GroupLayer that contains other GroupLayers

ChristopherMcCafferty — Fri, 17 Oct 2014 11:31:49 GMT

Hi Guys,

I was wondering if someone can help me out. I am trying to search for a certain layer using the ID property but my map contains many different types of Layers.

Here is a small diagram I have quickly made up to help explain what I am trying to do.

GroupLayerOne

ChildLayerOne

ChildLayerTwo

GroupLayerTwo

ChildGroupLayerOne

LayerOne

LayerTwo

LayerThree

ChildLayerThree

GraphicsLayer

I am trying to think of a easy way of searching through all these layers to find the one I want. I been toying around with trying to do it myself but I was wondering if the ESRI SDK had some functionailty that would make this easier.

Any advice/help appericated guys.

Thanks,

Chris

Re: Getting Layers within a GroupLayer that contains other GroupLayers

DominiqueBroux — Fri, 17 Oct 2014 11:38:04 GMT

You can use EnumerateAllLayers or EnumerateLeaves defined on FeatureCollection.

Something like:

foreach(var layer in MyMapView.Map.Layers.EnumerateLeaves())

.....

Re: Getting Layers within a GroupLayer that contains other GroupLayers

ChristopherMcCafferty — Fri, 17 Oct 2014 14:11:57 GMT

Thanks for the reply Dom,

For some reason I cannot access this function via the Layers property.

Its a function thats part of the GroupLayerBase class.

I have tried something like this:

var trees = GroupLayerBase.EnumerateLeaves(_map.Layers);

But the tree variable has null layers after its called this.

Re: Getting Layers within a GroupLayer that contains other GroupLayers

ChristopherMcCafferty — Fri, 17 Oct 2014 14:14:57 GMT

Scratch that last comment Dom,

It seems to be working as it should.

Thanks!!!