Slider.SelectionStart 属性

定义

命名空间:

System.Windows.Controls

程序集:

PresentationFramework.dll

获取或设置 Slider 的指定选择内容的最大值。

public:
 property double SelectionStart { double get(); void set(double value); };

[System.ComponentModel.Bindable(true)]
public double SelectionStart { get; set; }

[<System.ComponentModel.Bindable(true)>]
member this.SelectionStart : double with get, set

Public Property SelectionStart As Double

属性值

Double

所选值 Slider范围的最小值。 默认值为零 (0)。

属性

BindableAttribute

示例

下面的示例演示如何设置 SelectionEnd 属性。

Slider hslider = new Slider();
hslider.Orientation = Orientation.Horizontal;
hslider.Width = 100;
hslider.Minimum = 1;
hslider.Maximum = 10;
hslider.IsDirectionReversed = true;
hslider.IsMoveToPointEnabled = true;
hslider.AutoToolTipPrecision = 2;
hslider.AutoToolTipPlacement =
  AutoToolTipPlacement.BottomRight;
hslider.TickPlacement = TickPlacement.BottomRight;

// Manually add ticks to the slider.
DoubleCollection tickMarks = new DoubleCollection();
tickMarks.Add(0.5);
tickMarks.Add(1.5);
tickMarks.Add(2.5);
tickMarks.Add(3.5);
tickMarks.Add(4.5);
tickMarks.Add(5.5);
tickMarks.Add(6.5);
tickMarks.Add(7.5);
tickMarks.Add(8.5);
tickMarks.Add(9.5);
hslider.Ticks = tickMarks;

// Create a selection range.
hslider.IsSelectionRangeEnabled = true;
hslider.SelectionStart = 2.5;
hslider.SelectionEnd = 7.5;
cv2.Children.Add(hslider);

Dim hslider As New Slider()
hslider.Orientation = Orientation.Horizontal
hslider.Width = 100
hslider.Minimum = 1
hslider.Maximum = 10
hslider.IsDirectionReversed = True
hslider.IsMoveToPointEnabled = True
hslider.AutoToolTipPrecision = 2
hslider.AutoToolTipPlacement = AutoToolTipPlacement.BottomRight
hslider.TickPlacement = TickPlacement.BottomRight
Dim tickMarks As New DoubleCollection()
tickMarks.Add(0.5)
tickMarks.Add(1.5)
tickMarks.Add(2.5)
tickMarks.Add(3.5)
tickMarks.Add(4.5)
tickMarks.Add(5.5)
tickMarks.Add(6.5)
tickMarks.Add(7.5)
tickMarks.Add(8.5)
tickMarks.Add(9.5)
hslider.Ticks = tickMarks
hslider.IsSelectionRangeEnabled = True
hslider.SelectionStart = 2.5
hslider.SelectionEnd = 7.5
cv2.Children.Add(hslider)

<Slider Width="100" 
        Orientation="Horizontal"  
        Minimum="1" Maximum="10" 
        IsDirectionReversed="True"
        IsMoveToPointEnabled="True"
        AutoToolTipPrecision="2" AutoToolTipPlacement="BottomRight"
        TickPlacement="BottomRight"
        Ticks="0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5" 
        IsSelectionRangeEnabled="true"
        SelectionStart="2.5" SelectionEnd="7.5" Name="mySlider"/>

注解

属性的值 SelectionStart 不能小于属性的值， Minimum 也不能大于属性的值 Maximum 。 属性的值 SelectionEnd 还必须大于或等于属性的值 SelectionStart 。 如果 SelectionStart 小于Minimum或大于 Maximum，SelectionStart则分别设置为 或 Maximum 的值Minimum。

依赖项属性信息

标识符字段	SelectionStartProperty
元数据属性设置为 true	BindsTwoWayByDefault

另请参阅

• SelectionEnd
• IsSelectionRangeEnabled