FlowDocumentScrollViewer.Zoom 属性

定义

命名空间:

System.Windows.Controls

程序集:

PresentationFramework.dll

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

Double

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。

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

以下示例演示如何以编程方式设置 Zoom 属性。

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;

Dim flowDocScrollViewer As New FlowDocumentScrollViewer()

With flowDocScrollViewer
    ' Enable content selection.
    .IsSelectionEnabled = True
    ' Enable the toolbar.
    .IsToolBarVisible = True

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

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

注解

缩放级别受属性的值MinZoomMaxZoom约束。

依赖项属性信息

标识符字段	ZoomProperty
元数据属性设置为 true	无

另请参阅

• CanDecreaseZoom
• CanIncreaseZoom
• DecreaseZoom()
• IncreaseZoom()