Xamarin version 100.1 displayfield for layer from ArcGISMapImageLayer

GregorySayre — Wed, 10 Jan 2018 22:01:05 GMT

In version 100.1, is there a way to get the display field for a layer in an ArcGISMapImageLayer? It's connecting and drawing fine and I can view ALL the fields for a feature, but I don't know which field is the DisplayField.

var dynamicMapUrl = new Uri(SettingHelper.GisSettings.MapServiceUrl);

dynamicLayer = new ArcGISMapImageLayer(dynamicMapUrl) {Opacity = Constants.EsriMap.DynamicLayerOpacity};

_map.Basemap.BaseLayers.Add(dynamicLayer);

// Make sure that layer and it's sublayers are loaded

await dynamicLayer.LoadAsync();

// step through the map layers and save current visibility

foreach (ArcGISSublayer baselayer in dynamicLayer.Sublayers)

{

MapLayerViewModel parentLayer = new MapLayerViewModel();

parentLayer.Id = baselayer.Id;

parentLayer.Text = baselayer.Name;

parentLayer.IsSelected = baselayer.IsVisible;

//parentLayer.DisplayField = ?????????? //HOW DO I GET THIS?

}

Re: Xamarin version 100.1 displayfield for layer from ArcGISMapImageLayer

GregorySayre — Thu, 18 Jan 2018 23:27:58 GMT

I figured out a way to load the DisplayFieldName from the dynamic layers. I had to load information for EACH layer individually though.

In case anyone else gets stuck on this: (this only does parent and one level of child layers)

await dynamicLayer.LoadAsync();

foreach (Esri.ArcGISRuntime.Mapping.ArcGISSublayer sublayer in dynamicLayer.Sublayers)

{

String S = sublayer.DefinitionExpression;

await sublayer.LoadAsync();

String displayFieldName = sublayer.MapServiceSublayerInfo.DisplayFieldName;

foreach (Esri.ArcGISRuntime.Mapping.ArcGISSublayer sublayer2 in sublayer.Sublayers)

{

await sublayer2.LoadAsync();

String S2 = sublayer2.DefinitionExpression;

String displayFieldName2 = sublayer2.MapServiceSublayerInfo.DisplayFieldName;

}

topic Re: Xamarin version 100.1 displayfield for layer from ArcGISMapImageLayer in .NET Maps SDK Questions

Xamarin version 100.1 displayfield for layer from ArcGISMapImageLayer

Re: Xamarin version 100.1 displayfield for layer from ArcGISMapImageLayer