HandyControl/src/Shared/HandyControl_Shared/Controls/Slider/RangeSlider/RangeThumb.cs

using System;
using System.Windows;
using System.Windows.Controls.Primitives;
using System.Windows.Input;

namespace HandyControl.Controls
{
    public class RangeThumb : Thumb
    {
        public static readonly DependencyProperty ContentProperty = DependencyProperty.Register(
            "Content", typeof(object), typeof(RangeThumb), new PropertyMetadata(default(object)));

        public object Content
        {
            get => GetValue(ContentProperty);
            set => SetValue(ContentProperty, value);
        }

        protected override void OnMouseMove(MouseEventArgs e)
        {

        }

        public void StartDrag()
        {
            IsDragging = true;
            Focus();
            CaptureMouse();
            RaiseEvent(new MouseButtonEventArgs(Mouse.PrimaryDevice, Environment.TickCount, MouseButton.Left)
            {
                RoutedEvent = PreviewMouseLeftButtonDownEvent,
                Source = this
            });
        }

        public new void CancelDrag()
        {
            base.CancelDrag();

            RaiseEvent(new MouseButtonEventArgs(Mouse.PrimaryDevice, Environment.TickCount, MouseButton.Left)
            {
                RoutedEvent = PreviewMouseLeftButtonUpEvent
            });
        }
    }
}