Attributes Property
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TraceListener.Attributes Property

 

Gets the custom trace listener attributes defined in the application configuration file.

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

public StringDictionary Attributes { get; }

Property Value

Type: System.Collections.Specialized.StringDictionary

A StringDictionary containing the custom attributes for the trace listener.

Classes that inherit from the TraceListener class can add custom attributes by overriding the GetSupportedAttributes method and returning a string array of custom attribute names. The Attributes property identifies the custom attributes that are referenced in the application's configuration file. For example, in the following configuration file excerpt the DelimitedListTraceListener custom attribute "delimiter" is referenced. In this case, the Attributes property returns a StringDictionary containing the string "delimiter".

<listeners>
  <add name="delimitedListener" 
    type="System.Diagnostics.DelimitedListTraceListener" 
    delimiter=":" 
    initializeData="delimitedOutput.txt" 
    traceOutputOptions="ProcessId, DateTime" />
  <remove name="Default" />
</listeners>

Unreferenced custom attributes are not enumerated. For more information, see the GetSupportedAttributes method.

.NET Framework
Available since 2.0
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