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Attribute Constructor

Initializes a new instance of the Attribute class.

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

protected Attribute ()
protected Attribute ()
protected function Attribute ()

This constructor is only called by classes that derive from Attribute.

The following code example shows the definition of a custom parameter Attribute class with its constructor.

// Define a custom parameter attribute that takes a single message argument.
[AttributeUsage( AttributeTargets.Parameter )]
public class ArgumentUsageAttribute : Attribute
{
    // This is the attribute constructor.
    public ArgumentUsageAttribute( string UsageMsg )
    {
        this.usageMsg = UsageMsg;
    }

    // usageMsg is storage for the attribute message.
    protected string usageMsg;

    // This is the Message property for the attribute.
    public string Message
    {
        get { return usageMsg; }
        set { usageMsg = value; }
    }
}

// Define a custom parameter attribute that takes a single message argument.
/** @attribute AttributeUsage(AttributeTargets.Parameter)
 */
public class ArgumentUsageAttribute extends Attribute
{
    // This is the attribute constructor.
    public ArgumentUsageAttribute(String usgMsg)
    {
        this.usageMsg = usgMsg;
    } //ArgumentUsageAttribute

    // usageMsg is storage for the attribute message.
    protected String usageMsg;

    // This is the Message property for the attribute.
    /** @property 
     */
    public String get_Message()
    {
        return usageMsg;
    } //get_Message

    /** @property 
     */
    public void set_Message(String value)
    {
        usageMsg = value;
    } //set_Message
} //ArgumentUsageAttribute  

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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