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XmlElement.HasAttribute Method (String)

Determines whether the current node has an attribute with the specified name.

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

'Declaration
Public Overridable Function HasAttribute ( _
	name As String _
) As Boolean

Parameters

name
Type: System.String
The name of the attribute to find. This is a qualified name. It is matched against the Name property of the matching node.

Return Value

Type: System.Boolean
true if the current node has the specified attribute; otherwise, false.

The following example checks to see if the element has the specified attribute.


Imports System
Imports System.IO
Imports System.Xml

public class Sample

  public shared sub Main()

    Dim doc as XmlDocument = new XmlDocument()
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" & _
                "<title>Pride And Prejudice</title>" & _
                "</book>")      

    Dim root as XmlElement = doc.DocumentElement

    ' Check to see if the element has a genre attribute.
    if (root.HasAttribute("genre"))
     Dim genre as String = root.GetAttribute("genre")
     Console.WriteLine(genre)
    end if

    Console.WriteLine("Display the modified XML...")
    Console.WriteLine(doc.InnerXml)

  end sub
end class


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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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