lyfz_repos/其他源码/LYFZ.ComponentLibrary/ListViewEx.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.ComponentModel;
using System.Data;
namespace LYFZ.ComponentLibrary
{
    public class ListViewEx : System.Windows.Forms.ListView
    {
        public ListViewEx()
        {
        }
        private bool _isDefaultShowGroups;
        /// <summary>
        /// 默认是否显示分组
        /// </summary>
        public bool IsDefaultShowGroups
        {
            get
            { return _isDefaultShowGroups; }
            set 
            { _isDefaultShowGroups = value; }
        }
        /// <summary>
        /// 默认显示分组
        /// </summary>
        public bool DefaultShowGroups = true;
        /// <summary>
        /// 默认不显示分组
        /// </summary>
        public bool DefaultNotShowGroups = false;

        const int WM_HSCROLL = 0x0114;
        const int WM_VSCROLL = 0x0115;
        /// <summary>
        /// 重写滚动条滚动事件
        /// </summary>
        /// <param name="m"></param>
        protected override void WndProc(ref Message m)
        {
            if (m.Msg == WM_HSCROLL)
            { OnHScroll(this, new EventArgs()); }
            else if (m.Msg == WM_VSCROLL)
            { OnVScroll(this, new EventArgs()); }
            base.WndProc(ref m);
        }
        /// <summary>
        /// 滚动条滚动事件
        /// </summary>
        public event EventHandler Scroll;
        /// <summary>
        /// 重写滚动条滚动事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        virtual protected void OnHScroll(object sender, EventArgs e)
        {
            if (Scroll != null)
                Scroll(this, e);
        }
        /// <summary>
        /// 重写滚动条滚动事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        virtual protected void OnVScroll(object sender, EventArgs e)
        {
            if (Scroll != null)
                Scroll(this, e);
        }
       
    }
}