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V24.2

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PdfViewerControl.AnnotationCreated Event

Occurs after an annotation is created.

Namespace: DevExpress.Xpf.PdfViewer

Assembly: DevExpress.Xpf.PdfViewer.v24.2.dll

NuGet Package: DevExpress.Wpf.PdfViewer

#Declaration

public event PdfAnnotationCreatedEventHandler AnnotationCreated

#Event Data

The AnnotationCreated event's data class is PdfAnnotationCreatedEventArgs. The following properties provide information specific to this event:

Property Description
Annotation Retrieves the created annotation.
Handled Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

The event data class exposes the following methods:

Method Description
InvokeEventHandler(Delegate, Object) When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object) When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

#Remarks

The PdfAnnotationCreatedEventArgs.Annotation property gets the created annotation. Use the DevExpress.Pdf.PdfViewerAnnotationExtensions class methods to obtain a specific type of annotation.

The code sample below shows how to check whether the specific author created an annotation:

private void PdfViewer_AnnotationCreated(object sender,
 PdfAnnotationCreatedEventArgs e)
{
    if (e.Annotation.Type == PdfAnnotationType.TextMarkup
     || e.Annotation.Type == PdfAnnotationType.Text)
    {
        IPdfViewerMarkupAnnotation annotation =
         e.Annotation.AsMarkupAnnotation();
        if (annotation.Author == "Brian Zetc")
            MessageBox.Show("The main editor added a new annotation");
    }
}
See Also