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  [Expand]DevExpress.DataAccess.UI.Design
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  [Expand]DevExpress.XtraBars
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  [Collapse]DevExpress.XtraPdfViewer
   [Expand]IPdfViewerCommandFactoryService Interface
   [Expand]PdfCancelSaveOperationException Class
    PdfContentMarginMode Enumeration
   [Expand]PdfCurrentPageChangedEventArgs Class
    PdfCurrentPageChangedEventHandler Delegate
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   [Expand]PdfDocumentClosingEventArgs Class
    PdfDocumentClosingEventHandler Delegate
   [Expand]PdfDocumentProperties Class
   [Expand]PdfFileAttachmentOpeningEventArgs Class
    PdfFileAttachmentOpeningEventHandler Delegate
   [Expand]PdfFindDialogOptions Structure
   [Expand]PdfFindDialogVisibilityChangedEventArgs Class
    PdfFindDialogVisibilityChangedEventHandler Delegate
   [Expand]PdfFormFieldValueChangedEventArgs Class
    PdfFormFieldValueChangedEventHandler Delegate
   [Expand]PdfFormFieldValueChangingEventArgs Class
    PdfFormFieldValueChangingEventHandler Delegate
    PdfNavigationPanePage Enumeration
    PdfNavigationPanePageVisibility Enumeration
   [Expand]PdfNavigationPaneSelectedPageChangedEventArgs Class
    PdfNavigationPaneSelectedPageChangedEventHandler Delegate
    PdfNavigationPaneVisibility Enumeration
   [Expand]PdfNavigationPaneVisibilityChangedEventArgs Class
    PdfNavigationPaneVisibilityChangedEventHandler Delegate
    PdfOutlineNodeTextSize Enumeration
   [Expand]PdfOutlineViewerSettings Class
   [Expand]PdfPageSetupDialogShowingEventArgs Class
    PdfPageSetupDialogShowingEventHandler Delegate
    PdfPopupMenuKind Enumeration
   [Expand]PdfPopupMenuShowingEventArgs Class
    PdfPopupMenuShowingEventHandler Delegate
   [Expand]PdfReferencedDocumentOpeningEventArgs Class
    PdfReferencedDocumentOpeningEventHandler Delegate
   [Expand]PdfScrollPositionChangedEventArgs Class
    PdfScrollPositionChangedEventHandler Delegate
   [Expand]PdfSelectionContent Structure
    PdfSelectionContentType Enumeration
   [Expand]PdfSelectionEventArgs Class
    PdfSelectionPerformedEventHandler Delegate
   [Expand]PdfUriOpeningEventArgs Class
    PdfUriOpeningEventHandler Delegate
   [Collapse]PdfViewer Class
     PdfViewer Members
     PdfViewer Constructor
    [Expand]PdfViewer Properties
    [Expand]PdfViewer Events
    [Collapse]PdfViewer Methods
      About Method
     [Expand]AddService Method
      ClearSelection Method
      CloseDocument Method
      CopyToClipboard Method
      CreateBars Method
      CreateBitmap Method
      CreateRibbon Method
     [Expand]CreateTiff Method
      EnsureVisibility Method
     [Expand]FindText Method
      GetClientPoint Method
      GetContentInfo Method
     [Expand]GetDocumentPosition Method
      GetPageSize Method
      GetSelectionContent Method
      GetService<T> Method
     [Expand]HideFindDialog Method
      IsVisible Method
     [Expand]LoadDocument Method
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      ScrollHorizontal Method
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      SelectAllText Method
      ShowDocumentClosingWarning Method
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   [Expand]PdfZoomChangedEventArgs Class
    PdfZoomChangedEventHandler Delegate
    PdfZoomMode Enumeration
  [Expand]DevExpress.XtraPdfViewer.Commands
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[Expand]ASP.NET Controls and MVC Extensions
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[Expand]eXpressApp Framework
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[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

PdfViewer.IsVisible Method

Indicates the current visibility of a specific DevExpress.Pdf.PdfDocumentPosition.

Namespace:DevExpress.XtraPdfViewer
Assembly:DevExpress.XtraPdfViewer.v17.1.dll

Expanded Syntax

Parameters

documentPosition
Type: PdfDocumentPosition
A DevExpress.Pdf.PdfDocumentPosition object that specifies a specific document's position.

Return value

Type: Boolean
true, if a specific PDF document position is visible; otherwise, false.

Expanded Remarks

When calling the IsVisible method with the document position being null, the ArgumentNullException will be thrown.

When you call the IsVisible method before any document has been loaded, an InvalidOperationException will be thrown.

If the document position is found to be not visible, call the EnsureVisibility method. This method tries to display the document position at the center of the screen using the current document zoom factor. If this is not possible, the displayed position will appear within the visible document area.

Expanded See Also

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