Question

我想知道如何让滑块拇指跳到我点击滑块的位置。换句话说，如何检索用户在滑块上单击的值（然后我可以设置滑块的值）。

这个问题就像：

Slider control with Move-To-Position behavior

但是没有可用的解决方案。

由于wp7中的滑块控件没有 IsMoveToPointEnabled 属性，因此自定义是获取IMO功能的唯一方法。我使用following codes：

public class CustomSlider: Slider {
  public CustomSlider() {
    DefaultStyleKey = typeof (Slider);
  }
  public override void OnApplyTemplate() {
    base.OnApplyTemplate();
    RepeatButton rb;
    rb = base.GetTemplateChild("HorizontalTrackLargeChangeIncreaseRepeatButton") as RepeatButton;
    rb.MouseMove += new MouseEventHandler(rb_MouseMove);
    rb.Click += new RoutedEventHandler(rb_Click);
    rb = base.GetTemplateChild("HorizontalTrackLargeChangeDecreaseRepeatButton") as RepeatButton;
    rb.MouseMove += new MouseEventHandler(rb_MouseMove);
    rb.Click += new RoutedEventHandler(rb_Click);
    rb = base.GetTemplateChild("VerticalTrackLargeChangeIncreaseRepeatButton") as RepeatButton;
    rb.Click += new RoutedEventHandler(rb_Click);
    rb.MouseMove += new MouseEventHandler(rb_MouseMove);
    rb = base.GetTemplateChild("VerticalTrackLargeChangeDecreaseRepeatButton") as RepeatButton;
    rb.Click += new RoutedEventHandler(rb_Click);
    rb.MouseMove += new MouseEventHandler(rb_MouseMove);
    //rb.
  }
  Point ps;
  void rb_MouseMove(object sender, MouseEventArgs e) {
    ps = e.GetPosition(this);
  }
  public event EventHandler MyClickEvent;
  void rb_Click(object sender, RoutedEventArgs e) {
    if (MyClickEvent != null) MyClickEvent(this, new PositionEventArgs(ps));
  }
}
public class PositionEventArgs: EventArgs {
  public Point Position {
    set;
    get;
  }
  public PositionEventArgs() {}
  public PositionEventArgs(Point p) {
    Position = p;
  }
}

我尽我所能，但直到现在，我都无法让它发挥作用。嵌入滑块中的 RepeatButton 上的 MOUSEOVER 事件永远不会触发，即使xaml中单独存在 RepeatButton 。事实上，只是点击事件在我的实验中被触发。

我看到大多数视频播放器都有此功能，所以我真的想知道如何在播放器中制作它。

WP7中滑块控件的Move-to-Position行为

0 个答案: