Export (0) Print
Expand All

XObject.Annotations(Of T) Method

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)

'Declaration
Public Function Annotations(Of T As Class) As IEnumerable(Of T)

Type Parameters

T

The type of the annotations to retrieve.

Return Value

Type: System.Collections.Generic.IEnumerable(Of T)
An IEnumerable(Of T) that contains the annotations for this XObject.

The following example uses this method to retrieve annotations on an element.

Public Class MyAnnotation
    Private _tag As String

    Property Tag() As String
        Get
            Return Me._tag
        End Get
        Set(ByVal Value As String)
            Me._tag = Value
        End Set
    End Property

    Public Sub New(ByVal tag As String)
        Me._tag = tag
    End Sub
End Class

Module Module1
    Sub Main()
        Dim root As XElement = <Root>content</Root>
        root.AddAnnotation(New MyAnnotation("T1"))
        root.AddAnnotation(New MyAnnotation("T2"))
        root.AddAnnotation("abc")
        root.AddAnnotation("def")

        Dim annotationList As IEnumerable(Of MyAnnotation)
        annotationList = root.Annotations(Of MyAnnotation)()
        For Each ma As MyAnnotation In annotationList
            Console.WriteLine(ma.Tag)
        Next
        Console.WriteLine("----")

        Dim stringAnnotationList As IEnumerable(Of String)
        stringAnnotationList = root.Annotations(Of String)()
        For Each str As String In stringAnnotationList
            Console.WriteLine(str)
        Next
    End Sub
End Module

This example produces the following output:

T1
T2
----
abc
def

.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.

Show:
© 2014 Microsoft