正文

C# listview 点击列头排序的实例

︶ㄣ速达网 メ
米米素材网V管理员 / 阅读
0708

下面小编就为大家带来一篇C# listview 点击列头排序的实例。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧

实例如下：

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
#region 自定义变量
  int currentCol = -1;
  bool sort;
  #endregion//列头点击事件
 
private void lvw_ColumnClick(object sender, ColumnClickEventArgs e)
  {
   string Asc = ((char)0x25bc).ToString().PadLeft(4, ' ');
   string Des = ((char)0x25b2).ToString().PadLeft(4, ' ');
 
   if (sort == false)
   {
    sort = true;
    string oldStr = this.lvw.Columns[e.Column].Text.TrimEnd((char)0x25bc, (char)0x25b2, ' ');
    this.lvw.Columns[e.Column].Text = oldStr + Des;
   }
   else if (sort == true)
   {
    sort = false;
    string oldStr = this.lvw.Columns[e.Column].Text.TrimEnd((char)0x25bc, (char)0x25b2, ' ');
    this.lvw.Columns[e.Column].Text = oldStr + Asc;
   }
 
   if(lvw.Columns[e.Column].Tag.ToString()=="n")//在设计器中把列头的tag设为"n",则表示该列按数字比较器处理,否则为文本
    lvw.ListViewItemSorter = new ListViewItemComparerNum(e.Column, sort);
   else
    lvw.ListViewItemSorter = new ListViewItemComparer(e.Column, sort);
   this.lvw.Sort();
   int rowCount = this.lvw.Items.Count;
   if (currentCol != -1)
   {
    if (e.Column != currentCol)
     this.lvw.Columns[currentCol].Text = this.lvw.Columns[currentCol].Text.TrimEnd((char)0x25bc, (char)0x25b2, ' ');
   }
   currentCol = e.Column;
  }//文本比较器public class ListViewItemComparer : IComparer
  {
   public bool sort_b;
   public SortOrder order = SortOrder.Ascending;
 
   private int col;
 
   public ListViewItemComparer()
   {
    col = 0;
   }
 
   public ListViewItemComparer(int column, bool sort)
   {
    col = column;
    sort_b = sort;
   }
 
   public int Compare(object x, object y)
   {
    if (sort_b)
    {
     return String.Compare(((ListViewItem)x).SubItems[col].Text, ((ListViewItem)y).SubItems[col].Text);
    }
    else
    {
     return String.Compare(((ListViewItem)y).SubItems[col].Text, ((ListViewItem)x).SubItems[col].Text);
    }
   }
  }  //数字比较器
  public class ListViewItemComparerNum : IComparer
  {
   public bool sort_b;
   public SortOrder order = SortOrder.Ascending;
 
   private int col;
 
   public ListViewItemComparerNum()
   {
    col = 0;
   }
 
   public ListViewItemComparerNum(int column, bool sort)
   {
    col = column;
    sort_b = sort;
   }
 
   public int Compare(object x, object y)
   {
    decimal d1=Convert.ToDecimal(((ListViewItem)x).SubItems[col].Text);
    decimal d2=Convert.ToDecimal(((ListViewItem)y).SubItems[col].Text);
    if (sort_b)
    {
     return decimal.Compare(d1,d2);
    }
    else
    {
     return decimal.Compare(d2,d1);
    }
   }
  }

以上这篇C# listview 点击列头排序的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持米米素材网。