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XmlReader.MoveToFirstAttribute Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

When overridden in a derived class, moves to the first attribute.

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

Syntax

'Declaration
Public MustOverride Function MoveToFirstAttribute As Boolean

public abstract bool MoveToFirstAttribute()

Return Value

Type: System.Boolean
true if an attribute exists (the reader moves to the first attribute); otherwise, false (the position of the reader does not change).

Examples

The following example uses the XmlReader methods to read the content of elements and attributes.

Dim output As StringBuilder = New StringBuilder()

Dim xmlString As String = _
    "<bookstore>" & _
            "<book genre='autobiography' publicationdate='1981-03-22' ISBN='1-861003-11-0'>" & _
                "<title>The Autobiography of Benjamin Franklin</title>" & _
                "<author>" & _
                    "<first-name>Benjamin</first-name>" & _
                    "<last-name>Franklin</last-name>" & _
                "</author> " & _
                "<price>8.99</price>" & _
            "</book>" & _
        "</bookstore>"

' Create an XmlReader
Using reader As XmlReader = XmlReader.Create(New StringReader(xmlString))

    reader.ReadToFollowing("book")
    reader.MoveToFirstAttribute()
    Dim genre As String = reader.Value
    output.AppendLine("The genre value: " + genre)

    reader.ReadToFollowing("title")
    output.AppendLine("Content of the title element: " + reader.ReadElementContentAsString())
End Using

OutputTextBlock.Text = output.ToString()

StringBuilder output = new StringBuilder();

String xmlString =
    @"<bookstore>
        <book genre='autobiography' publicationdate='1981-03-22' ISBN='1-861003-11-0'>
            <title>The Autobiography of Benjamin Franklin</title>
            <author>
                <first-name>Benjamin</first-name>
                <last-name>Franklin</last-name>
            </author>
            <price>8.99</price>
        </book>
    </bookstore>";

// Create an XmlReader
using (XmlReader reader = XmlReader.Create(new StringReader(xmlString)))
{
    reader.ReadToFollowing("book");
    reader.MoveToFirstAttribute();
    string genre = reader.Value;
    output.AppendLine("The genre value: " + genre);

    reader.ReadToFollowing("title");
    output.AppendLine("Content of the title element: " + reader.ReadElementContentAsString());
}

OutputTextBlock.Text = output.ToString();

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.