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FlowDocumentScrollViewer.ZoomIncrement Property

 
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Gets or sets the zoom increment.

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

public double ZoomIncrement { get; set; }

Property Value

Type: System.Double

The current zoom increment, interpreted as a percentage. The default is 10.0 (zoom increments by 10%).

The zoom increment is the percentage by which the Zoom level is increased or decreased when the IncreaseZoom or DecreaseZoom commands are executed, respectively.

Identifier field

ZoomIncrementProperty

Metadata properties set to true

None

The following example shows how to set the ZoomIncrement attribute.

<FlowDocumentScrollViewer
  HorizontalScrollBarVisibility="Auto" 
  VerticalScrollBarVisibility="Auto" 
  IsSelectionEnabled="True" 
  IsToolBarVisible="True" 
  MinZoom="50" MaxZoom="1000"
  Zoom="120" ZoomIncrement="5"
>
  <FlowDocument>
    <Paragraph>
      Flow content...
    </Paragraph>
  </FlowDocument>
</FlowDocumentScrollViewer>

The following example shows how to set the ZoomIncrement 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
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