Zoom Property

FlowDocumentScrollViewer.Zoom Property


Gets or sets the current zoom level.

Namespace:   System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public double Zoom { get; set; }

Property Value

Type: System.Double

The current zoom level, interpreted as a percentage. The default is 100.0 (a zoom level of 100%).

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

Identifier field


Metadata properties set to true


The following example shows how to set the Zoom attribute.

  MinZoom="50" MaxZoom="1000"
  Zoom="120" ZoomIncrement="5"
      Flow content...

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

FlowDocumentScrollViewer flowDocScrollViewer = new FlowDocumentScrollViewer();

// Enable content selection.
flowDocScrollViewer.IsSelectionEnabled = true;
// Enable the toolbar.
flowDocScrollViewer.IsToolBarVisible = true;

// Set zoom between 50% and 1000%.
flowDocScrollViewer.MinZoom = 50;
flowDocScrollViewer.MaxZoom = 1000;
// Set the zoom increment to 5%.
flowDocScrollViewer.ZoomIncrement = 5;
// Set the initial zoom to 120%.
flowDocScrollViewer.Zoom = 120;

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

.NET Framework
Available since 3.0
Return to top
© 2015 Microsoft