private async void SaveFeatureCollectionFromQuery()
{
Debug.WriteLine("Creating feature collection from the service...");
// Create a service feature table to get features from
ServiceFeatureTable featTable = new ServiceFeatureTable(new Uri(FeatureLayerUrl));
// Create a query to get all features in the table
QueryParameters queryParams = new QueryParameters();
queryParams.WhereClause = "1=1";
// Query the table to get all features
FeatureQueryResult featureResult = await featTable.QueryFeaturesAsync(queryParams);
// Create a new feature collection table from the result features
FeatureCollectionTable collectTable = new FeatureCollectionTable(featureResult);
// Create a feature collection and add the table
FeatureCollection featCollection = new FeatureCollection();
featCollection.Tables.Add(collectTable);
var tokenServiceUri = new Uri("https://www.arcgis.com/sharing/rest"); // url for generating token
AuthenticationManager authManager = AuthenticationManager.Current;
var cred = await authManager.GenerateCredentialAsync(tokenServiceUri, "*******", "*******");
// Open a portal item containing a feature collection
ArcGISPortal portal = await ArcGISPortal.CreateAsync(tokenServiceUri, cred);
List <string> str = new List <string>();
str.Add("Save Feature collection");
FeatureCollectionLayer featCollectionTable = new FeatureCollectionLayer(featCollection);
await featCollectionTable.LoadAsync();
MyMapView.Map.OperationalLayers.Add(featCollectionTable);
Debug.WriteLine("Create a feature layer named, Feature Collection to Portal, and saving to portal...");
try
{
await featCollection.SaveAsAsync(portal, null, "Feature Collection to Portal", "FeatureCollection", str);
MessageBox.Show("Feature Collection saved to portal");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}