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TraceSource.GetSupportedAttributes Method

Gets the custom attributes supported by the trace source.

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

protected internal virtual string[] GetSupportedAttributes()

Return Value

Type: System.String[]
A string array naming the custom attributes supported by the trace source, or null if there are no custom attributes.

The default implementation for GetSupportedAttributes returns null.

Notes to Inheritors:

When inheriting from the TraceSource class or a derived class, you can override the GetSupportedAttributes method to provide custom attributes for your class.

The following code example shows an override of the GetSupportedAttributes method to identify the custom attributes for the MyTraceSource class.

public class MyTraceSource : TraceSource
    string firstAttribute = "";
    string secondAttribute = "";
    public MyTraceSource(string n) : base(n) {}

    public string FirstTraceSourceAttribute
        get {
            foreach (DictionaryEntry de in this.Attributes)
                if (de.Key.ToString().ToLower() == "firsttracesourceattribute")
                    firstAttribute = de.Value.ToString() ; 
            return firstAttribute;
        set { firstAttribute = value; }

    public string SecondTraceSourceAttribute
        get {
            foreach (DictionaryEntry de in this.Attributes)
                if (de.Key.ToString().ToLower() == "secondtracesourceattribute")
                    secondAttribute = de.Value.ToString();
            return secondAttribute; }
        set { secondAttribute = value; }

    protected override string[] GetSupportedAttributes()
        // Allow the use of the attributes in the configuration file. 
        return new string[] { "FirstTraceSourceAttribute", "SecondTraceSourceAttribute" };

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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, 3.0, 2.0