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XmlWriter.WriteValue Method (Double)

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

Writes a Double value.

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

Syntax

'Declaration
Public Overridable Sub WriteValue ( _
    value As Double _
)

public virtual void WriteValue(
    double value
)

Parameters

Exceptions

Exception Condition
ArgumentException

An invalid value was specified.

Remarks

If WriteValue is called multiple times in succession, the values are not delimited by a space. You must call WriteWhitespace between calls to WriteValue to insert white space. Pass an array type to the XmlWriter.WriteValue(Object) overload to write out an array of distinct values.

If this method is called on an XmlWriter instance that outputs text-only, the typed value is serialized to text.

Examples

Dim output As New StringBuilder()

Dim price As Double = 9.95
Dim [date] As New DateTime(2004, 5, 20)

Using writer As XmlWriter = XmlWriter.Create(output)
    writer.WriteStartElement("book")
    writer.WriteStartAttribute("pub-date")
    writer.WriteValue([date])
    writer.WriteEndAttribute()

    writer.WriteStartElement("price")
    writer.WriteValue(price)
    writer.WriteEndElement()

    writer.WriteEndElement()
    writer.Flush()
End Using

OutputTextBlock.Text = output.ToString()


StringBuilder output = new StringBuilder();

Double price = 9.95;
DateTime date = new DateTime(2004, 5, 20);

using (XmlWriter writer = XmlWriter.Create(output))
{
    writer.WriteStartElement("book");
    writer.WriteStartAttribute("pub-date");
    writer.WriteValue(date);
    writer.WriteEndAttribute();

    writer.WriteStartElement("price");
    writer.WriteValue(price);
    writer.WriteEndElement();

    writer.WriteEndElement();
    writer.Flush();
}

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.