topic Re: How to get Layer Description in ArcGIS API for Silverlight Questions

How to get Layer Description

LakshmananVenkatesan — Wed, 16 Mar 2011 05:42:49 GMT

Hi

I have a dynamic map service with 60+ layers. For each layer I have added specific description. I want to get the description for each layer using Sliver light API. How to get the description.?
I can see the description text in my rest services.

Layer description is always null

API help says LayerLegendInfo has LayerDescription property which provides description of the layer. But I do not know how to access layer Legend info class and get the layer description property

Pl help

SR

Re: How to get Layer Description

JenniferNery — Sat, 11 Dec 2021 19:51:36 GMT

You can include a LegendExtension from this thread: http://forums.arcgis.com/threads/18999-How-do-I-get-the-selected-LegendItem and access the selected LegendItemViewModel.

private void Button_Click(object sender, System.Windows.RoutedEventArgs e)
{
 var result = this.MyLegend.SelectedItems();
 foreach (var item in result)
  MessageBox.Show(item.Description);
}

Another way is to parse the json.

private void ArcGISDynamicMapServiceLayer_Initialized(object sender, System.EventArgs e)
{
 ArcGISDynamicMapServiceLayer layer = sender as ArcGISDynamicMapServiceLayer;
 foreach (var l in layer.Layers)
 {
  //TODO use this sub layer url 
  //string.Format("{0}/{1}/f=json", layer.Url, l.ID));
 }
}

http://forums.silverlight.net/forums/p/169016/385411.aspx

Re: How to get Layer Description

OrenGal — Tue, 15 Nov 2011 09:15:00 GMT

Just needed to read Description from my 188 layers in the MXD. Used soap.

System.ServiceModel.EndpointAddress endPointAddress = new System.ServiceModel.EndpointAddress(pURL);
System.ServiceModel.BasicHttpBinding basicHttpBinding = new System.ServiceModel.BasicHttpBinding() { MaxReceivedMessageSize = 2147483647 };
_client = new MapServerPortClient(basicHttpBinding, endPointAddress);
_client.GetServerInfoCompleted += new EventHandler<GetServerInfoCompletedEventArgs>(_client_GetServerInfoCompleted);
_client.GetServerInfoAsync("Layers");

private void _client_GetServerInfoCompleted(object sender, GetServerInfoCompletedEventArgs e)
{
e.Result.MapLayerInfos....
}

Oren.
http://www.gal-systems.com

Re: How to get Layer Description

JenniferNery — Tue, 15 Nov 2011 13:20:55 GMT

Thank you for sharing your code. We have also included GetDetails() and GetAllDetails() in v2.3 to give you metadata information about a specific layer or all sub layers of ArcGISDynamicMapServiceLayer or ArcGISTiledMapServiceLayer.

Re: How to get Layer Description

OrenGal — Tue, 15 Nov 2011 13:36:40 GMT

Thank you for sharing your code. We have also included GetDetails() and GetAllDetails() in v2.3 to give you metadata information about a specific layer or all sub layers of ArcGISDynamicMapServiceLayer or ArcGISTiledMapServiceLayer.

Great!
(What is v2.3? I'm using 3.0 beta1)