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CodeDelegateInvokeExpression Class

Represents an expression that raises an event.

System::Object
  System.CodeDom::CodeObject
    System.CodeDom::CodeExpression
      System.CodeDom::CodeDelegateInvokeExpression

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

[SerializableAttribute]
[ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)]
[ComVisibleAttribute(true)]
public ref class CodeDelegateInvokeExpression : public CodeExpression

The CodeDelegateInvokeExpression type exposes the following members.

  NameDescription
Public methodCodeDelegateInvokeExpression()Initializes a new instance of the CodeDelegateInvokeExpression class.
Public methodCodeDelegateInvokeExpression(CodeExpression)Initializes a new instance of the CodeDelegateInvokeExpression class using the specified target object.
Public methodCodeDelegateInvokeExpression(CodeExpression, array<CodeExpression>)Initializes a new instance of the CodeDelegateInvokeExpression class using the specified target object and parameters.
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  NameDescription
Public propertyParametersGets or sets the parameters to pass to the event handling methods attached to the event.
Public propertyTargetObjectGets or sets the event to invoke.
Public propertyUserDataGets the user-definable data for the current object. (Inherited from CodeObject.)
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  NameDescription
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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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. 
array<CodeExpression^>^temp1 = {gcnew CodeThisReferenceExpression,gcnew CodeObjectCreateExpression( "System.EventArgs", nullptr )};
CodeDelegateInvokeExpression^ invoke1 = gcnew CodeDelegateInvokeExpression( gcnew CodeEventReferenceExpression( gcnew CodeThisReferenceExpression,"TestEvent" ),temp1 );

// A C# code generator produces the following source code for the preceeding example code: 
//    this.TestEvent(this, new System.EventArgs());

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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