Save any changes that have been made to the FeatureCollection to the associated PortalItem.
Esri.ArcGISRuntime (in Esri.ArcGISRuntime.dll) Version: 184.108.40.206
A task that represents the asynchronous save operation.
Asynchronous method to save any changes that have been made to the FeatureCollection. The FeatureCollection must have been constructed
using the FeatureCollection(PortalItem) constructor to associate it with a PortalItem object, and must be
loaded, or must have been previous saved using SaveAsAsync(ArcGISPortal, PortalFolder, String, String, IEnumerableString, RuntimeImage)
Updates the FeatureCollection content data on the portal and also updates the portal item properties stored on the portal to
match those stored within the FeatureCollection's PortalItem object.