Dim instance As XmlInteractiveActivity
Dim handler As EventHandler(Of XmlDocumentValidationEventArgs)

AddHandler instance.XmlDocumentValidation, handler

<DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)> _
<ValidationOptionAttribute(ValidationOption.None)> _
<BrowsableAttribute(True)> _
<DescriptionAttribute("An Event Handler for Validating the Xml Document. This event is triggered upon successful deserialization of the document, and allows a parent activity to perform additional document validation if necessary. Should the parent activity wish to flag that document validation failed, it should set the FaultMessage property to an appropriate Fault Exception.")> _
<CategoryAttribute("Event Handlers")> _
Public Event XmlDocumentValidation As EventHandler(Of XmlDocumentValidationEventArgs)

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible)] 
[ValidationOptionAttribute(ValidationOption.None)] 
[BrowsableAttribute(true)] 
[DescriptionAttribute("An Event Handler for Validating the Xml Document. This event is triggered upon successful deserialization of the document, and allows a parent activity to perform additional document validation if necessary. Should the parent activity wish to flag that document validation failed, it should set the FaultMessage property to an appropriate Fault Exception.")] 
[CategoryAttribute("Event Handlers")] 
public event EventHandler<XmlDocumentValidationEventArgs> XmlDocumentValidation

[DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility::Visible)] 
[ValidationOptionAttribute(ValidationOption::None)] 
[BrowsableAttribute(true)] 
[DescriptionAttribute(L"An Event Handler for Validating the Xml Document. This event is triggered upon successful deserialization of the document, and allows a parent activity to perform additional document validation if necessary. Should the parent activity wish to flag that document validation failed, it should set the FaultMessage property to an appropriate Fault Exception.")] 
[CategoryAttribute(L"Event Handlers")] 
public:
event EventHandler<XmlDocumentValidationEventArgs^>^ XmlDocumentValidation {
		void add (EventHandler<XmlDocumentValidationEventArgs^>^ value);
		void remove (EventHandler<XmlDocumentValidationEventArgs^>^ value);
}

/** @event */
public void add_XmlDocumentValidation (EventHandler<XmlDocumentValidationEventArgs> value)

/** @event */
public void remove_XmlDocumentValidation (EventHandler<XmlDocumentValidationEventArgs> value)