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UnescapedXmlDiagnosticData Class

Provides unescaped XML data for the logging of user-provided trace data.

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

[HostProtectionAttribute(SecurityAction.LinkDemand, MayLeakOnAbort = true)]
public class UnescapedXmlDiagnosticData


The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: MayLeakOnAbort. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

This class is used by the TraceData methods. It can also be used to pass XML data to the TraceData methods.


The user-provided data is not checked for schema validity.

The following code example demonstrates how to use UnescapedXmlDiagnosticData class. This code example is part of a larger example that is provided for the EventSchemaTraceListener class.

string testString = "<Test><InnerElement Val=\"1\" /><InnerElement Val=\"Data\"/><AnotherElement>11</AnotherElement></Test>";
UnescapedXmlDiagnosticData unXData = new UnescapedXmlDiagnosticData(testString);
ts.TraceData(TraceEventType.Error, 38, unXData);


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5