XmlWriterTraceListener Constructor (String)

Initializes a new instance of the XmlWriterTraceListener class, using the specified file as the recipient of the debugging and tracing output.

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

public XmlWriterTraceListener(
	string filename


Type: System.String

The name of the file to write to.


filename is null.

This constructor initializes a new instance of the StreamWriter class for the specified file on the specified path, using UTF8 encoding. If the file exists, it is appended to. If the file does not exist, a new file is created.


To reduce the chance of an exception, any character that might invalidate the output is replaced with a "?" character.

The Name property is initialized to an empty string ("").

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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