PdfViewerControl.PdfDocumentLoadingPolicy Property
Specifies how PDF documents are loaded and processed for additional features such as text search, bookmarks, attachments, etc. This is a dependency property.
Namespace: DevExpress.UI.Xaml.Controls
Assembly: DevExpress.UI.Xaml.Controls.v21.2.dll
NuGet Package: DevExpress.Uwp.Controls
Declaration
Property Value
| Type | Description |
|---|---|
| PdfDocumentLoadingPolicy | A PdfDocumentLoadingPolicy enumeration value. By default, PdfDocumentLoadingPolicy.InMemoryOnDemand. |
Available values:
| Name | Description |
|---|---|
| NativeOnly | The document is loaded on demand. Additional features are not available. |
| NativeOnlyInMemory | The document is fully loaded in memory. Additional features are not available. |
| OnDemand | The document is loaded on demand and processed for additional features as they are requested. |
| InMemory | The document is fully loaded in memory and immediately preprocessed for all additional features. |
| InMemoryOnDemand | The document is fully loaded in memory and processed for additional features as they are requested. |
Remarks
The PdfDocumentLoadingPolicy property allows you to optimize the PDF Viewer’s performance by selecting the mode that is the most appropriate for your scenario.
Modes that support additional features:
- InMemory - Slower initial loading, more memory consumption, better performance.
- InMemoryOnDemand - Faster initial loading, less memory consumption, slower performance on initial feature requests. Once the end-user requests all additional features available for a document, performance matches the InMemory mode.
- OnDemand - Faster initial loading, minimal memory consumption and slower performance.
Modes that do not support additional features:
- NativeOnly - Less memory consumption and slower performance.
- NativeOnlyInMemory - More memory consumption and better performance.