listview控件实现点击列表头进行listview排序示例分享

listview控件实现点击列表头进行listview排序示例分享这篇文章主要介绍了listview控件实现点击列表头进行listview排序示例分享,需要的朋友可以参考下

复制代码 代码如下:

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:

复制代码 代码如下:

private void Form1_Load(object sender, EventArgs e)

{

    this.listView1.ListViewItemSorter = new Common.ListViewColumnSorter();

    this.listView1.ColumnClick += new ColumnClickEventHandler(Common.ListViewHelper.ListView_ColumnClick);

}

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