ScrollViewer滚动事件

Question

有没有办法为ScrollViewer捕获以下事件

ScrollViewer.ScrollStarter="ScrollStarted"
ScrollViewer.ScrollCompleted="ScrollCompleted"

Answer 1

我认为在silverlight中没有像ScrollStarted或ScrollEnded这样的事件。但您可以创建一个侦听水平和垂直Offset的Dependency Property，并使用此Dependecy Property触发一个自定义事件，以指示用户是否滚动。

This link包含一个示例；

Answer 2

我觉得你应该试试我的方法

public static class ScrollViewerBinding
{
  #region VerticalOffset attached property

  /// <summary>
  /// Gets the vertical offset value
  /// </summary>
  public static double GetVerticalOffset(DependencyObject depObj)
  {
    return (double)depObj.GetValue(VerticalOffsetProperty);
  }

  /// <summary>
  /// Sets the vertical offset value
  /// </summary>
  public static void SetVerticalOffset(DependencyObject depObj, double value)
  {
    depObj.SetValue(VerticalOffsetProperty, value);
  }

  /// <summary>
  /// VerticalOffset attached property
  /// </summary>
  public static readonly DependencyProperty VerticalOffsetProperty =
      DependencyProperty.RegisterAttached("VerticalOffset", typeof(double),
      typeof(ScrollViewerBinding), 
    new PropertyMetadata(0.0, OnVerticalOffsetPropertyChanged));

  #endregion
}