<PackageReference Include="NETStandard.Library" Version="2.0.3" />

System.Data.InternalDataCollectionBase

namespace System.Data { public class InternalDataCollectionBase : ICollection, IEnumerable { public virtual int Count { get; } public bool IsReadOnly { get; } public bool IsSynchronized { get; } protected virtual ArrayList List { get; } public object SyncRoot { get; } public InternalDataCollectionBase(); public virtual void CopyTo(Array ar, int index); public virtual IEnumerator GetEnumerator(); } }