protected override void OnClick()
{
// Approach 1
// open feature service by known URL
ServiceConnectionProperties svcsProperties = new ServiceConnectionProperties(
new Uri("http://services.arcgis.com/6DIQcwlPy8knb6sg/arcgis/rest/services/Openstreetmap/FeatureServer"));
QueuedTask.Run(() =>
{
using (FeatureService featureService = new FeatureService(svcsProperties))
{
var footprints = featureService.OpenDataset <FeatureClass>(0);
var featureClassDefinition = footprints.GetDefinition();
var oidField = featureClassDefinition.GetObjectIDField();
}
});
// Approach 2
// open feature service from layer
var featureLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType <FeatureLayer>().FirstOrDefault();
QueuedTask.Run(() =>
{
using (FeatureService featureService = featureLayer.GetFeatureClass().GetDatastore() as FeatureService)
{
var footprints = featureService.OpenDataset <FeatureClass>(0);
var footprintsFeatureClass = featureLayer.GetFeatureClass();
var featureClassDefinition = footprints.GetDefinition();
var oidField = featureClassDefinition.GetObjectIDField();
using (var featureCursor = footprints.Search(new QueryFilter()
{
WhereClause = "building = 'yes'"
}, false))
{
while (featureCursor.MoveNext())
{
var currentFeature = featureCursor.Current as Feature;
System.Diagnostics.Debug.WriteLine(currentFeature["osmuser"]);
}
}
}
});
}