Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Zoom Property

FlowDocumentReader.Zoom Property

Gets or sets the current zoom level.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

public double Zoom { get; set; }
<object Zoom="double" .../>

Property Value

Type: System.Double
The current zoom level, interpreted as a percentage. The default value 100.0 (zoom level of 100%).

Identifier field

ZoomProperty

Metadata properties set to true

None

Default FlowDocumentReader user interface (UI) includes a zoom control that provides buttons for increasing or decreasing the zoom, as well as a slider for adjusting the zoom level. The following figure shows the zoom controls on a FlowDocumentReader with default UI.

FlowDocumentReader content zoom

The zoom level is constrained by the values of the MinZoom and MaxZoom properties.

The following example shows how to set the Zoom attribute.

<FlowDocumentReader
  IsFindEnabled="True"  
  IsPrintEnabled="True"
  MinZoom="50" MaxZoom="1000"
  Zoom="120" ZoomIncrement="5"
>
  <FlowDocument>
    <Paragraph>
      Flow content...
    </Paragraph>
  </FlowDocument>
</FlowDocumentReader>

The following example shows how to set the Zoom property programmatically.

FlowDocumentReader flowDocRdr = new FlowDocumentReader();

// Enable find...
flowDocRdr.IsFindEnabled = true;
// Enable printing...
flowDocRdr.IsPrintEnabled = true;
// Set zoom between 50% and 1000%.
flowDocRdr.MinZoom = 50;
flowDocRdr.MaxZoom = 1000;
// Set the zoom increment to 5%.
flowDocRdr.ZoomIncrement = 5;
// Set the initial zoom to 120%.
flowDocRdr.Zoom = 120;

FlowDocument flowDoc = new FlowDocument(new Paragraph(new Run("Flow content...")));
flowDocRdr.Document = flowDoc;

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Show:
© 2015 Microsoft