SPFeatureCollection public sealed class SPFeatureCollection : ICollection, IEnumerable<SPFeature>, IEnumerable Documentation public int Count { get; } public SPFeature this[Guid featureId] { get; } public SPFeature Add(Guid featureId) public SPFeature Add(Guid featureId, bool force) public SPFeature Add(Guid featureId, bool force, SPFeatureDefinitionScope featdefScope) public SPFeature Add(Guid featureId, int compatibilityLevel, bool force, SPFeatureDefinitionScope featdefScope) public void Remove(Guid featureId, bool force) public void Remove(Guid featureId)