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CodeDelegateInvokeExpression Class

Represents an expression that raises an event.

Namespace: System.CodeDom
Assembly: System (in system.dll)

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)] 
public class CodeDelegateInvokeExpression : CodeExpression
/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
/** @attribute ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch) */ 
public class CodeDelegateInvokeExpression extends CodeExpression
SerializableAttribute 
ComVisibleAttribute(true) 
ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch) 
public class CodeDelegateInvokeExpression extends CodeExpression
Not applicable.

CodeDelegateInvokeExpression can be used to represent code that invokes an event. Invoking an event invokes all delegates that are registered with the event using the specified parameters.

The TargetObject property specifies the event to invoke. The Parameters property specifies the parameters to pass to the delegates for the event.

The following example demonstrates use of a CodeDelegateInvokeExpression to invoke an event named TestEvent.

// Invokes the delegates for an event named TestEvent, passing a local object reference and a new System.EventArgs.
CodeDelegateInvokeExpression invoke1 = new CodeDelegateInvokeExpression( new CodeEventReferenceExpression(new CodeThisReferenceExpression(), "TestEvent"), 
    new CodeExpression[] { new CodeThisReferenceExpression(), new CodeObjectCreateExpression("System.EventArgs") } );

// A C# code generator produces the following source code for the preceeding example code:

//    this.TestEvent(this, new System.EventArgs());

// Invokes the delegates for an event named TestEvent, passing
// a local object reference and a new System.EventArgs.
CodeDelegateInvokeExpression invoke1 = new 
    CodeDelegateInvokeExpression(new 
    CodeEventReferenceExpression(new CodeThisReferenceExpression(),
    "TestEvent"), new CodeExpression[] { new 
    CodeThisReferenceExpression(), new CodeObjectCreateExpression((
    "System.EventArgs"), new CodeExpression[] {}) });
// A VJ# code generator produces the following source code for 
// the preceeding example code:
//    this.TestEvent(this, new System.EventArgs());

System.Object
   System.CodeDom.CodeObject
     System.CodeDom.CodeExpression
      System.CodeDom.CodeDelegateInvokeExpression
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 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0
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