<PackageReference Include="NETStandard.Library" Version="2.0.1" />

System.Xml.Schema.XmlSchemaObjectCollection

namespace System.Xml.Schema { public class XmlSchemaObjectCollection : CollectionBase { public virtual XmlSchemaObject this[int index] { get; set; } public XmlSchemaObjectCollection(); public XmlSchemaObjectCollection(XmlSchemaObject parent); public int Add(XmlSchemaObject item); public bool Contains(XmlSchemaObject item); public void CopyTo(XmlSchemaObject[] array, int index); public new XmlSchemaObjectEnumerator GetEnumerator(); public int IndexOf(XmlSchemaObject item); public void Insert(int index, XmlSchemaObject item); public void Remove(XmlSchemaObject item); } }