【WPF】Slider 任意位置拖动

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 当不点Slider的Thumb时，Thumb不跟着鼠标走。复制粘贴，解决它

前台

MouseMove="Slider_OnMouseMove"
IsMoveToPointEnabled="True"

后台代码 

private void Slider_OnMouseMove(object sender, MouseEventArgs e)
	{
		if (e.LeftButton == MouseButtonState.Pressed)
		{
			var slider = (Slider)sender;
			System.Windows.Point position = e.GetPosition(slider);
			double d = 1.0d / slider.ActualWidth * position.X;
			var p = slider.Maximum * d;
			slider.Value = p;
		}
	}