FlowDocumentReader.Zoom 属性

定义

获取或设置当前缩放级别。

public:
 property double Zoom { double get(); void set(double value); };
public double Zoom { get; set; }
member this.Zoom : double with get, set
Public Property Zoom As Double

属性值

当前缩放级别,以百分比表示。 默认值为 100.0(缩放级别为 100%)。

示例

以下示例演示如何设置 Zoom 属性。

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

下面的示例演示如何以编程方式设置 Zoom 属性。

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;
Dim flowDocRdr As 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

Dim flowDoc As New FlowDocument(New Paragraph(New Run("Flow content...")))
flowDocRdr.Document = flowDoc

注解

默认 FlowDocumentReader 用户界面 (UI) 包括一个缩放控件,该控件提供用于增加或减少缩放的按钮,以及一个用于调整缩放级别的滑块。 下图显示了 具有默认 UI 的 上的 FlowDocumentReader 缩放控件。

FlowDocumentReader 内容缩放

缩放级别受 MinZoomMaxZoom 属性值的约束。

依赖项属性信息

标识符字段 ZoomProperty
元数据属性设置为 true

适用于

另请参阅