PdfViewer.UriOpening Event

Occurs after the hyperlink addressing an external URI (universal resource identifier) is clicked.

Namespace: DevExpress.XtraPdfViewer

Assembly: DevExpress.XtraPdfViewer.v25.1.dll

NuGet Package: DevExpress.Win.PdfViewer

Declaration

C#

public event PdfUriOpeningEventHandler UriOpening

VB.NET

Public Event UriOpening As PdfUriOpeningEventHandler

Event Data

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

Property	Description
Cancel	Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
Handled	Gets or sets a value that specifies whether the PdfViewer.UriOpening event is handled; if handled, the Security Warning message box is hidden.
OriginalUriString	Gets the original URI string from which the Uri object is created.
Uri	Gets the opened document’s URI (Uniform Resource Identifier).

Remarks

The following image illustrates a security warning displayed in a PDF Viewer when clicking a hyperlink addressing an external URI.

Set the e.Handled property to true to hide the message box. You can prevent URI opening without using the message box (e.Handled should be set to true) by setting the e.Cancel property to true.