listview控件实现点击列表头进行listview排序示例分享

using system;
using system.collections;
using system.windows.forms;
namespace common
{
    /// <summary>
    /// 对listview点击列标题自动排序功能
    /// </summary>
    public class listviewhelper
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        public listviewhelper()
        {
            //
            // todo: 在此处添加构造函数逻辑
            //
        }
        public static void listview_columnclick(object sender, system.windows.forms.columnclickeventargs e)
        {
            system.windows.forms.listview lv = sender as system.windows.forms.listview;
            // 检查点击的列是不是现在的排序列.
            if (e.column == (lv.listviewitemsorter as listviewcolumnsorter).sortcolumn)
            {
                // 重新设置此列的排序方法.
                if ((lv.listviewitemsorter as listviewcolumnsorter).order == system.windows.forms.sortorder.ascending)
                {
                    (lv.listviewitemsorter as listviewcolumnsorter).order = system.windows.forms.sortorder.descending;
                }
                else
                {
                    (lv.listviewitemsorter as listviewcolumnsorter).order = system.windows.forms.sortorder.ascending;
                }
            }
            else
            {
                // 设置排序列，默认为正向排序
                (lv.listviewitemsorter as listviewcolumnsorter).sortcolumn = e.column;
                (lv.listviewitemsorter as listviewcolumnsorter).order = system.windows.forms.sortorder.ascending;
            }
            // 用新的排序方法对listview排序
            ((system.windows.forms.listview)sender).sort();
        }
    }
    /// <summary>
    /// 继承自icomparer
    /// </summary>
    public class listviewcolumnsorter : system.collections.icomparer
    {
        /// <summary>
        /// 指定按照哪个列排序
        /// </summary>
        private int columntosort;
        /// <summary>
        /// 指定排序的方式
        /// </summary>
        private system.windows.forms.sortorder orderofsort;
        /// <summary>
        /// 声明caseinsensitivecomparer类对象
        /// </summary>
        private system.collections.caseinsensitivecomparer objectcompare;
        /// <summary>
        /// 构造函数
        /// </summary>
        public listviewcolumnsorter()
        {
            // 默认按第一列排序
            columntosort = 0;
            // 排序方式为不排序
            orderofsort = system.windows.forms.sortorder.none;
            // 初始化caseinsensitivecomparer类对象
            objectcompare = new system.collections.caseinsensitivecomparer();
        }
        /// <summary>
        /// 重写icomparer接口.
        /// </summary>
        /// <param name="x">要比较的第一个对象</param>
        /// <param name="y">要比较的第二个对象</param>
        /// <returns>比较的结果.如果相等返回0，如果x大于y返回1，如果x小于y返回-1</returns>
        public int compare(object x, object y)
        {
            int compareresult;
            system.windows.forms.listviewitem listviewx, listviewy;
            // 将比较对象转换为listviewitem对象
            listviewx = (system.windows.forms.listviewitem)x;
            listviewy = (system.windows.forms.listviewitem)y;
            string xtext = listviewx.subitems[columntosort].text;
            string ytext = listviewy.subitems[columntosort].text;
            int xint, yint;
            // 比较,如果值为ip地址，则根据ip地址的规则排序。
            if (isip(xtext) && isip(ytext))
            {
                compareresult = compareip(xtext, ytext);
            }
            else if (int.tryparse(xtext, out xint) && int.tryparse(ytext, out yint)) //是否全为数字
            {
                //比较数字
                compareresult = compareint(xint, yint);
            }
            else
            {
                //比较对象
                compareresult = objectcompare.compare(xtext, ytext);
            }
            // 根据上面的比较结果返回正确的比较结果
            if (orderofsort == system.windows.forms.sortorder.ascending)
            {
                // 因为是正序排序，所以直接返回结果
                return compareresult;
            }
            else if (orderofsort == system.windows.forms.sortorder.descending)
            {
                // 如果是反序排序，所以要取负值再返回
                return (-compareresult);
            }
            else
            {
                // 如果相等返回0
                return 0;
            }
        }
        /// <summary>
        /// 判断是否为正确的ip地址，ip范围（0.0.0.0～255.255.255）
        /// </summary>
        /// <param name="ip">需验证的ip地址</param>
        /// <returns></returns>
        public bool isip(string ip)
        {
            return system.text.regularexpressions.regex.match(ip, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$").success;
        }
        /// <summary>
        /// 比较两个数字的大小
        /// </summary>
        /// <param name="ipx">要比较的第一个对象</param>
        /// <param name="ipy">要比较的第二个对象</param>
        /// <returns>比较的结果.如果相等返回0，如果x大于y返回1，如果x小于y返回-1</returns>
        private int compareint(int x, int y)
        {
            if (x > y)
            {
                return 1;
            }
            else if (x < y)
            {
                return -1;
            }
            else
            {
                return 0;
            }
        }
        /// <summary>
        /// 比较两个ip地址的大小
        /// </summary>
        /// <param name="ipx">要比较的第一个对象</param>
        /// <param name="ipy">要比较的第二个对象</param>
        /// <returns>比较的结果.如果相等返回0，如果x大于y返回1，如果x小于y返回-1</returns>
        private int compareip(string ipx, string ipy)
        {
            string[] ipxs = ipx.split('.');
            string[] ipys = ipy.split('.');
            for (int i = 0; i < 4; i++)
            {
                if (convert.toint32(ipxs[i]) > convert.toint32(ipys[i]))
                {
                    return 1;
                }
                else if (convert.toint32(ipxs[i]) < convert.toint32(ipys[i]))
                {
                    return -1;
                }
                else
                {
                    continue;
                }
            }
            return 0;
        }
        /// <summary>
        /// 获取或设置按照哪一列排序.
        /// </summary>
        public int sortcolumn
        {
            set
            {
                columntosort = value;
            }
            get
            {
                return columntosort;
            }
        }
        /// <summary>
        /// 获取或设置排序方式.
        /// </summary>
        public system.windows.forms.sortorder order
        {
            set
            {
                orderofsort = value;
            }
            get
            {
                return orderofsort;
            }
        }
    }
}

以上代码封装后无须更改，在窗体中添加一个listview控件，在窗体的load事件中添加如下代码：

private void form1_load(object sender, eventargs e)
{
    this.listview1.listviewitemsorter = new common.listviewcolumnsorter();
    this.listview1.columnclick += new columnclickeventhandler(common.listviewhelper.listview_columnclick);
}