Parameters

standalone

A bool where true indicates to write "yes" as the value for the standalone attribute, and false indicates to write "no".

Exceptions

Type	Reason
InvalidOperationException	The XmlTextWriter.WriteState is not WriteState.Start.

Remarks

Note:

When System.Xml.XmlTextWriter is instantiated, the XmlTextWriter.WriteState is set to WriteState.Start. All the "write" methods change the XmlTextWriter.WriteState to a value other than Start. Thus, if this method is not the first "write" method called, a InvalidOperationException is thrown.

If XmlTextWriter.WriteStartDocument has been called and then the XmlTextWriter.WriteProcessingInstruction(string, string) method is used to create another XML declaration, a ArgumentException will be thrown.

The output of this method with standalone equal to true, an encoding equal to System.Text.Encoding.Unicode, and using the default XmlTextWriter.QuoteChar is:

<?xml version="1.0" encoding="utf-16" standalone="yes"?>

Character encoding is set when the writer is instantiated.

This method overrides XmlWriter.WriteStartDocument.

Requirements

Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0