Delegate Constructor (Object, String)

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Updated: June 2010

Initializes a delegate that invokes the specified instance method on the specified class instance.

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


<SecuritySafeCriticalAttribute> _
Protected Sub New ( _
    target As Object, _
    method As String _
protected Delegate(
    Object target,
    string method


  • target
    Type: System.Object
    The class instance on which the delegate invokes method.
  • method
    Type: System.String
    The name of the instance method that the delegate represents.


Exception Condition

target is nulla null reference (Nothing in Visual Basic).


method is nulla null reference (Nothing in Visual Basic).


There was an error binding to the target method.


Application code attempts to access this member late-bound, for example, by using the Type.InvokeMember method.


This constructor cannot be used in application code. To create a delegate by specifying the name of an instance method, use an overload of the CreateDelegate method that specifies a method name and a target object. For example, the CreateDelegate method overload creates a delegate for an instance method with a specified name.

This constructor creates delegates for instance methods only. An instance method is a method that is associated with an instance of a class; a static method is a method that is associated with the class itself.

Version Information


Supported in: 5, 4, 3


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Change History




June 2010

Clarified that this constructor is not used in application code.

Customer feedback.