Collection contains all locally cached FeatureSources stored in MobileService, and provides information to inspect each layer in terms of default visibility, editable or not, editing type, editing version name, etc.

You can check the number of FeatureSources contained in the collection by using Count property. To check if a specific cache FeatureSource exists in the collection, use Contains method. To get the index for a specific cache FeatureSource in the collection, use IndexOf method.

System.Object
   ESRI.ArcGIS.Mobile.FeatureCaching.ReadOnlyFeatureSourceCollection

Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family

Reference