ReadElementContentAsLong Method
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XmlReader.ReadElementContentAsLong Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Reads the current element and returns the contents as a 64-bit signed integer.

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

public virtual long ReadElementContentAsLong()

Return Value

Type: System.Int64
The element content as a 64-bit signed integer.

ExceptionCondition
InvalidOperationException

The XmlReader is not positioned on an element.

XmlException

The current element contains child elements.

-or-

The element content cannot be converted to a 64-bit signed integer.

ArgumentNullException

The method is called with null arguments.

This method reads the start tag, the contents of the element, and moves the reader past the end element tag. It expands entities and ignores processing instructions and comments. The element can only contain simple content. That is, it cannot have child elements.





StringBuilder output = new StringBuilder();

String xmlString =
    @"<root>
    <stringValue>
    <!--comment-->
    <?some pi?>
        text value of the element.
    </stringValue>
    <longValue>270000000000001</longValue>
    <number>0</number>
    <double>2E10</double>
    <date>2003-01-08T15:00:00-00:00</date>
</root>";

using (XmlReader reader = XmlReader.Create(new StringReader(xmlString)))
{
    reader.ReadToFollowing("longValue");
    long number = reader.ReadElementContentAsLong();
    output.AppendLine(number.ToString());
}

OutputTextBlock.Text = output.ToString();


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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