IAdornerPlacement 接口

项目
09/04/2008

更新：2007 年 11 月

命名空间： Microsoft.Windows.Design.Interaction
程序集： Microsoft.Windows.Design.Interaction（在 Microsoft.Windows.Design.Interaction.dll 中）

语法

声明
Public Interface IAdornerPlacement
用法
Dim instance As IAdornerPlacement

public interface IAdornerPlacement

public interface class IAdornerPlacement

public interface IAdornerPlacement

备注

位置项用来建立一组值，在 AdornerPanel 上确定装饰器的位置和大小时这些值可以提供灵活性。

示例

下面的代码示例演示如何为轨道装饰器设置在控件内的位置。有关更多信息，请参见演练：在控件内部实现一个轨道。

' Place the slider in the adorner panel.
Dim placement As New AdornerPlacementCollection()
AdornerPanel.SetHorizontalStretch(skewSlider, AdornerStretch.Stretch)
AdornerPanel.SetVerticalStretch(skewSlider, AdornerStretch.None)

' Use layout space for the adorner panel.
' If render space were used, the slider would skew along with the button.
panel.CoordinateSpace = AdornerCoordinateSpaces.Layout

' The adorner's width is relative to the content.
' The slider extends half the width of the control it adorns.
placement.SizeRelativeToContentWidth(0.5, 0)

' Center the adorner within the control.
placement.PositionRelativeToAdornerWidth(0.5, 0)

' The adorner's height is the same as the slider's.
placement.SizeRelativeToAdornerDesiredHeight(1.0, 0)

' Position the adorner within the control it adorns.
placement.PositionRelativeToAdornerHeight(1.0, 0)

AdornerPanel.SetPlacements(skewSlider, placement)

// Place the slider in the adorner panel.
AdornerPlacementCollection placement = new AdornerPlacementCollection();
AdornerPanel.SetHorizontalStretch(skewSlider, AdornerStretch.Stretch);
AdornerPanel.SetVerticalStretch(skewSlider, AdornerStretch.None);

// Use layout space for the adorner panel.
// If render space were used, the slider would skew along with the button.
panel.CoordinateSpace = AdornerCoordinateSpaces.Layout;

// The adorner's width is relative to the content.
// The slider extends half the width of the control it adorns.
placement.SizeRelativeToContentWidth(0.5, 0);

// Center the adorner within the control.
placement.PositionRelativeToAdornerWidth(0.5, 0);

// The adorner's height is the same as the slider's.
placement.SizeRelativeToAdornerDesiredHeight(1.0, 0);

// Position the adorner within the control it adorns.
placement.PositionRelativeToAdornerHeight(1.0, 0);

AdornerPanel.SetPlacements(skewSlider, placement);