public void setSelectedItem(object selectedItem)
{
GraphicsOverlay.Graphics.Clear();
FeatureAttributes = new List <FeatureAttribute>();
if (selectedItem is FeatureResult)
{
List <FeatureAttribute> _featureAttributes = new List <FeatureAttribute>();
var featureResult = ((FeatureResult)selectedItem);
var layer = LayerList.FirstOrDefault(_layer => _layer.Name == featureResult.layer.Name);
foreach (var keyValue in featureResult.feature.Attributes)
{
var name = keyValue.Key;
if (layer != null)
{
if (layer is FeatureLayer)
{
var field = ((FeatureLayer)layer).FeatureTable.Fields.FirstOrDefault(_field => _field.Name == keyValue.Key);
if (field != null)
{
name = field.Alias;
}
}
}
_featureAttributes.Add(new FeatureAttribute(name, keyValue.Value?.ToString()));
}
var geometry = featureResult.feature.Geometry;
Symbol symbol;
if (geometry.GeometryType == GeometryType.Point || geometry.GeometryType == GeometryType.Multipoint)
{
symbol = new SimpleMarkerSymbol();
}
else if (geometry.GeometryType == GeometryType.Polyline)
{
symbol = new SimpleLineSymbol();
}
else
{
symbol = new SimpleFillSymbol();
}
GraphicsOverlay.Graphics.Add(new Graphic(geometry, symbol));
FeatureAttributes = _featureAttributes;
}
}
private async void Identify(object sender, Esri.ArcGISRuntime.UI.Controls.GeoViewInputEventArgs e)
{
GraphicsOverlay.Graphics.Clear();
FeatureAttributes = new List <FeatureAttribute>();
if (SelectedLayer.Name == "<All>")
{
IdentifyLayerResults.Clear();
var results = await MapVM.MapView.IdentifyLayersAsync(e.Position, 10, false);
foreach (var result in results)
{
if (result.LayerContent is FeatureLayer && LayerList.FirstOrDefault(layer => layer.Name == result.LayerContent.Name) != null)
{
IdentifyLayerResults.Add(GetLayerResult(result));
}
if (result.LayerContent is GroupLayer)
{
foreach (var subresult in result.SublayerResults)
{
if (subresult.LayerContent is FeatureLayer && LayerList.FirstOrDefault(layer => layer.Name == subresult.LayerContent.Name) != null)
{
IdentifyLayerResults.Add(GetLayerResult(subresult));
}
}
}
}
}
else
{
IdentifyLayerResults.Clear();
var result = await MapVM.MapView.IdentifyLayerAsync(SelectedLayer, e.Position, 10, false);
IdentifyLayerResults.Add(GetLayerResult(result));
}
}
