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  • winform ListView点击行表头,排序

    第一种办法:

    将ListView的数据放入DataView中,设置DataView的Sort属性,然后将DataView中的内容在ListView中展示出来。

    (1)初始化ListView,将ListView的数据存入DataTable中

    (2)从DataTable中获得DataView

    (3)设置DataView的Sort属性,根据条件进行设定

    (4)将DataView中的数据在ListView中展示出来

    aaa.txt:

     1 using System;
     2 using System.Data;
     3 using System.IO;
     4 using System.Text;
     5 using System.Windows.Forms;
     6 
     7 namespace batch
     8 {
     9     public partial class Form3 : Form
    10     {
    11         public Form3()
    12         {
    13             InitializeComponent();
    14         }
    15         DataTable dt = null;
    16         private void Form3_Load(object sender, EventArgs e)
    17         {
    18             //添加DataTable的列表头
    19             dt = new DataTable();
    20             dt.Columns.Add("num");
    21             dt.Columns.Add("name");
    22             dt.Columns.Add("age");
    23             string path = @"C:UsersAdministratorDesktopaaa.txt";
    24             //读取文本文件内容
    25             string[] ss = File.ReadAllLines(path, Encoding.Default);
    26             foreach (string s in ss)
    27             {
    28                 string[] a = s.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
    29                 //往listView1中添加数据
    30                 ListViewItem li = new ListViewItem();
    31                 li.Text = a[0];
    32                 li.SubItems.AddRange(new string[] { a[1], a[2] });
    33                 listView1.Items.Add(li);
    34                 //往DataTable中添加行数据
    35                 dt.Rows.Add(a[0], a[1], a[2]);
    36             }
    37         }
    38         int sortfield = -1;
    39         /// <summary>
    40         /// listView1的列头点击事件
    41         /// </summary>
    42         /// <param name="sender"></param>
    43         /// <param name="e"></param>
    44         private void listView1_ColumnClick(object sender, ColumnClickEventArgs e)
    45         {
    46             if (dt == null) return;
    47             //获得有内容的DataView
    48             DataView dv = new DataView(dt);
    49             //获得所点列的索引
    50             int sf = e.Column;
    51             if (sortfield == sf)
    52             {
    53                 //设置sort
    54                 dv.Sort = dt.Columns[sf].ColumnName + " desc";
    55                 sortfield = -1;
    56             }
    57             else
    58             {
    59                 dv.Sort = dt.Columns[sf].ColumnName + " asc";
    60                 sortfield = sf;
    61             }
    62             //展示DataView中的内容
    63             listView1.Items.Clear();
    64             foreach (DataRowView drv in dv)
    65             {
    66                 ListViewItem li = new ListViewItem();
    67                 li.Text = drv[0].ToString();
    68                 li.SubItems.Add(drv[1].ToString());
    69                 li.SubItems.Add(drv[2].ToString());
    70                 listView1.Items.Add(li);
    71             }
    72 
    73         }
    74     }
    75 }
    View Code

    第二种方法:转自http://bbs.csdn.net/topics/350071962

      重写一个排序方法,进行方法绑定,可以具体问题具体分析,灵活性大。

     1     class ListViewColumnSorter : IComparer
     2     {
     3         private int columnToSort;
     4         private SortOrder orderOfSort;
     5         private CaseInsensitiveComparer objectCompare;
     6         public ListViewColumnSorter()
     7         {
     8             columnToSort = 0;
     9             orderOfSort = SortOrder.None;
    10             objectCompare = new CaseInsensitiveComparer();
    11         }
    12 
    13 
    14         int IComparer.Compare(object x, object y)
    15         {
    16             int result = 0;
    17             ListViewItem lx = (ListViewItem)x;
    18             ListViewItem ly = (ListViewItem)y;
    19             string xtext = lx.SubItems[columnToSort].Text;
    20             string ytext = ly.SubItems[columnToSort].Text;
    21             int xx = 0, yy = 0;
    22             if (int.TryParse(xtext, out xx) && int.TryParse(ytext, out yy))
    23                 result = xx.CompareTo(yy);
    24             else
    25                 result = xtext.CompareTo(ytext);
    26             if (orderOfSort == SortOrder.Ascending)
    27                 return result;
    28             else if (orderOfSort == SortOrder.Descending)
    29                 return -result;
    30             else
    31                 return 0;
    32         }
    33         public int sortColumn
    34         {
    35             set { columnToSort = value; }
    36             get { return columnToSort; }
    37         }
    38         public SortOrder order
    39         {
    40             set { orderOfSort = value; }
    41             get { return orderOfSort; }
    42         }
    43 
    44 
    45 
    46     }
    47 
    48     class ListViewHelper
    49     {
    50         public ListViewHelper() { }
    51         public static void listView_columnClick(object sender, ColumnClickEventArgs e)
    52         {
    53             
    54             ListView lv = sender as ListView;
    55             lv.Cursor = Cursors.Hand;
    56             if (e.Column == ((ListViewColumnSorter)lv.ListViewItemSorter).sortColumn)//排序方式
    57             {
    58                 if (((ListViewColumnSorter)lv.ListViewItemSorter).order == SortOrder.Ascending)
    59                     ((ListViewColumnSorter)lv.ListViewItemSorter).order = SortOrder.Descending;
    60                 else
    61                     ((ListViewColumnSorter)lv.ListViewItemSorter).order = SortOrder.Ascending;
    62 
    63             }
    64             else
    65             {
    66                 ((ListViewColumnSorter)lv.ListViewItemSorter).sortColumn = e.Column;
    67                 ((ListViewColumnSorter)lv.ListViewItemSorter).order = SortOrder.Ascending;
    68             }
    69             lv.Sort();
    70         }
    71     }
    View Code

    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);
    }
    完!
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  • 原文地址:https://www.cnblogs.com/wwz-wwz/p/7010322.html
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