WPF 自定义控件--仪表盘

仪表盘：

  可根据数值调整颜色，绿色：正常，黄色：预警、红色：警告。图示仪表盘数值绑定Slider的Value。 

  依赖属性注册：

  [Category("值设定")]
        public Brush ShowBrush
        {
            get { return (Brush)GetValue(ShowBrushPropertyProperty); }
            set { SetValue(ShowBrushPropertyProperty, value); }
        }
        public static readonly DependencyProperty ShowBrushPropertyProperty =
            DependencyProperty.Register("ShowBrush", typeof(Brush), typeof(ArcGauge), new PropertyMetadata(Brushes.Green, OnValueChanged));

ShowBrush可在样式中（仪表盘）绑定：