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XObject.Annotations Method (Type)

Gets a collection of annotations of the specified type for this XObject.

Namespace:  System.Xml.Linq
Assembly:  System.Xml.Linq (in System.Xml.Linq.dll)

public IEnumerable<Object> Annotations(
	Type type


Type: System.Type

The Type of the annotations to retrieve.

Return Value

Type: System.Collections.Generic.IEnumerable<Object>
An IEnumerable<T> of Object that contains the annotations that match the specified type for this XObject.

The following example adds some annotations to an XElement, then retrieves a collection of annotations by using this method.

public class MyAnnotation
    private string tag;
    public string Tag { get { return tag; } set { tag = value; } }
    public MyAnnotation(string tag)
        this.tag = tag;

class Program
    static void Main(string[] args)
        XElement root = new XElement("Root", "content");
        root.AddAnnotation(new MyAnnotation("T1"));
        root.AddAnnotation(new MyAnnotation("T2"));

        IEnumerable<object> annotationList;
        annotationList = root.Annotations(typeof(MyAnnotation));
        foreach (object ma in annotationList)

        IEnumerable<object> stringAnnotationList;
        stringAnnotationList = root.Annotations(typeof(string));
        foreach (object str in stringAnnotationList)

This example produces the following output:


.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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