Source/ScrollBar/ScrollBarAdv.cs

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using System;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;
using DevComponents.DotNetBar.ScrollBar;
using System.Drawing;

namespace DevComponents.DotNetBar
{
    [ToolboxItem(false), DefaultEvent("Scroll"), DefaultProperty("Value")]
    public abstract class ScrollBarAdv : Control, ICommandSource
    {
        #region Private Variables
        private ScrollBarCore _ScrollBar = null;
        #endregion

        #region Events
        /// <summary>
        /// Occurs when the Value property is changed, either by a Scroll event or programmatically.
        /// </summary>
        public event EventHandler ValueChanged;

        /// <summary>
        /// Occurs when the scroll box has been moved by either a mouse or keyboard action.
        /// </summary>
        public event ScrollEventHandler Scroll;
        #endregion

        #region Constructor
        /// <summary>
        /// Initializes a new instance of the ScrollBarAdv class.
        /// </summary>
        public ScrollBarAdv()
        {
            this.TabStop = false;
            this.SetStyle(ControlStyles.UserPaint, true);
            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
            this.SetStyle(ControlStyles.Opaque, true);
            this.SetStyle(ControlStyles.ResizeRedraw, true);
            this.SetStyle(DisplayHelp.DoubleBufferFlag, true);
            this.SetStyle(ControlStyles.SupportsTransparentBackColor, false);
            this.SetStyle(ControlStyles.ContainerControl, false);
            this.SetStyle(ControlStyles.Selectable, true);
            CreateScrollBarCore();
        }
        #endregion

        #region Internal Implementation
        protected override void Dispose(bool disposing)
        {
            if (_ScrollBar != null)
            {
                _ScrollBar.Dispose();
                _ScrollBar = null;
            }
            base.Dispose(disposing);
        }
        /// <summary>
        /// Gets whether scrollbar is vertical.
        /// </summary>
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