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XObject.Annotation Method (Type)

Gets the first annotation object of the specified type from this XObject.

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

public Object Annotation(
	Type type
)

Parameters

type
Type: System.Type
The Type of the annotation to retrieve.

Return Value

Type: System.Object
The Object that contains the first annotation object that matches the specified type, or null if no annotation is of the specified type.

The following example adds an annotation to an XElement. It then retrieves the annotation, specifying the type to retrieve.

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

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

        MyAnnotation ma2 = (MyAnnotation)root.Annotation(typeof(MyAnnotation));
        Console.WriteLine(ma2.Tag);
    }
}

This example produces the following output:

T1

.NET Framework

Supported in: 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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