PdfViewerControl.ShowingEditor Event

Occurs before the focused form field’s editor is activated, allowing you to prevent end-users from activating the form field’s editor.

Namespace : DevExpress.Xpf.PdfViewer

Assembly : DevExpress.Xpf.PdfViewer.v25.2.dll

NuGet Package : DevExpress.Wpf.PdfViewer

Declaration

csharp

public event ShowingEditorEventHandler ShowingEditor

Public Event ShowingEditor As ShowingEditorEventHandler

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

Property	Description
Cancel	Gets or sets a value indicating whether to cancel opening a form field’s editor.
FieldName	Gets the name of the form field. Inherited from PdfEditorEventArgsBase.
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.