LayoutInformation 类

定义

命名空间:

System.Windows.Controls.Primitives

程序集:

PresentationFramework.dll

定义提供关于元素布局状态的其他信息的方法。

public ref class LayoutInformation abstract sealed

public static class LayoutInformation

type LayoutInformation = class

Public Class LayoutInformation

继承

Object

LayoutInformation

示例

下面的示例演示如何使用 GetLayoutSlot 该方法将边界 FrameworkElement 框转换为 a GeometryDrawing。

private void getLayoutSlot1(object sender, System.Windows.RoutedEventArgs e)
{
    RectangleGeometry myRectangleGeometry = new RectangleGeometry();
    myRectangleGeometry.Rect = LayoutInformation.GetLayoutSlot(txt1);
    Path myPath = new Path();
    myPath.Data = myRectangleGeometry;
    myPath.Stroke = Brushes.LightGoldenrodYellow;
    myPath.StrokeThickness = 5;
    Grid.SetColumn(myPath, 0);
    Grid.SetRow(myPath, 0);
    myGrid.Children.Add(myPath);
    txt2.Text = "LayoutSlot is equal to " + LayoutInformation.GetLayoutSlot(txt1).ToString();
}

Private Sub getLayoutSlot1(ByVal sender As Object, ByVal e As RoutedEventArgs)
    Dim myRectangleGeometry As New RectangleGeometry
    myRectangleGeometry.Rect = LayoutInformation.GetLayoutSlot(txt1)
    Dim myPath As New Path
    myPath.Data = myRectangleGeometry
    myPath.Stroke = Brushes.LightGoldenrodYellow
    myPath.StrokeThickness = 5
    Grid.SetColumn(myPath, 0)
    Grid.SetRow(myPath, 0)
    myGrid.Children.Add(myPath)
    txt2.Text = "LayoutSlot is equal to " + LayoutInformation.GetLayoutSlot(txt1).ToString()
End Sub

方法

GetLayoutClip(FrameworkElement)	返回表示元素的可见区域的 Geometry。
GetLayoutExceptionElement(Dispatcher)	返回一个 UIElement，布局引擎将在发生未经处理的异常时对其进行处理。
GetLayoutSlot(FrameworkElement)	返回表示为子元素保留的布局分区的 Rect。