Winfrom Datagridview点击表头排序

参考链接：https://blog.csdn.net/qq_42025804/article/details/97796374?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task

  1 using System;
  2 using System.Collections;
  3 using System.Collections.Generic;
  4 using System.ComponentModel;
  5 using System.Data;
  6 using System.Drawing;
  7 using System.Linq;
  8 using System.Text;
  9 using System.Threading.Tasks;
 10 using System.Windows.Forms;
 11 
 12 namespace MatrixDemo
 13 {
 14     public partial class FormPoints : Form
 15     {
 16         private int count = 0;
 17         private bool initSet = false;
 18 
 19         public FormPoints(List<DpMatrix.MatrixPoint> points)
 20         {
 21             InitializeComponent();
 22             UpdatePointsDGV(points);
 23         }
 24 
 25         private void FormPoints_Load(object sender, EventArgs e)
 26         {
 27 
 28         }
 29 
 30         private void FormPoints_Shown(object sender, EventArgs e)
 31         {
 32             this.PointsCountSSL.Text = this.count.ToString();
 33         }
 34 
 35         private void UpdatePointsDGV(List<DpMatrix.MatrixPoint> points)
 36         {
 37             this.PointsDGV.DataSource = points;
 38             this.count = points.Count;
 39 
 40             if (!initSet)
 41             {
 42                 this.PointsDGV.Columns[0].HeaderCell.Value = "行";
 43                 this.PointsDGV.Columns[1].HeaderCell.Value = "列";
 44                 this.PointsDGV.Columns[2].HeaderCell.Value = "亮/灭";
 45 
 46                 this.PointsDGV.Columns[2].SortMode = DataGridViewColumnSortMode.NotSortable;
 47 
 48                 this.PointsDGV.Columns[0].ReadOnly = true;
 49                 this.PointsDGV.Columns[1].ReadOnly = true;
 50                 this.PointsDGV.Columns[2].ReadOnly = false;
 51 
 52                 initSet = !initSet;
 53             }
 54         }
 55 
 56         //排序
 57         private void PointsDGV_ColumnHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
 58         {
 59             try
 60             {
 61                 //取得点击列的索引
 62                 int nColumnIndex = e.ColumnIndex;
 63 
 64                 List<DpMatrix.MatrixPoint> points = (List<DpMatrix.MatrixPoint>)PointsDGV.DataSource;//转成类的list集合
 65 
 66                 if (PointsDGV.Columns[nColumnIndex].SortMode == DataGridViewColumnSortMode.NotSortable)
 67                 {
 68                     return;
 69                 }
 70                 switch (PointsDGV.Columns[nColumnIndex].HeaderCell.SortGlyphDirection)
 71                 {
 72                     case SortOrder.None:
 73                     case SortOrder.Ascending:
 74                         ListSort(points, nColumnIndex, 0);
 75                         PointsDGV.Columns[nColumnIndex].HeaderCell.SortGlyphDirection = SortOrder.Descending;
 76                         break;
 77                     case SortOrder.Descending:
 78                         ListSort(points, nColumnIndex, 1); 
 79                         PointsDGV.Columns[nColumnIndex].HeaderCell.SortGlyphDirection = SortOrder.Ascending;
 80                         break;
 81                 }
 82             }
 83             catch (Exception ex)
 84             {
 85                 MessageBox.Show(ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
 86             }
 87 
 88 
 89         }
 90 
 91         //0-desc;1-asc
 92         private void ListSort(List<DpMatrix.MatrixPoint> points, int index, int type)
 93         {
 94             switch (index)
 95             {
 96                 case 0:
 97                     PointsDGV.DataSource = (type == 0) ? 
 98                         points.OrderByDescending(p => p.row).ToList() : points.OrderBy(p => p.row).ToList();
 99                     break;
100                 case 1:
101                     PointsDGV.DataSource = (type == 0) ? 
102                         points.OrderByDescending(p => p.col).ToList() : points.OrderBy(p => p.col).ToList();
103                     break;
104             }
105         }
106     }
107 }