<PackageReference Include="NETStandard.Library" Version="2.0.2" />

System.Xml.Linq.XStreamingElement

public class XStreamingElement
namespace System.Xml.Linq { public class XStreamingElement { public XName Name { get; set; } public XStreamingElement(XName name); public XStreamingElement(XName name, object content); public XStreamingElement(XName name, params object[] content); public void Add(object content); public void Add(params object[] content); public void Save(Stream stream); public void Save(Stream stream, SaveOptions options); public void Save(TextWriter textWriter); public void Save(TextWriter textWriter, SaveOptions options); public void Save(string fileName); public void Save(string fileName, SaveOptions options); public void Save(XmlWriter writer); public string ToString(SaveOptions options); public void WriteTo(XmlWriter writer); } }