datagridview的combobox级联代码1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WinformDataGridViewComboBoxDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            InitDataGridView();
        }

        private void InitDataGridView()
        {
            DataGridViewTextBoxColumn column1 = new DataGridViewTextBoxColumn();
            column1.DataPropertyName = "Id";
            this.dataGridView1.Columns.Add(column1);

            DataGridViewTextBoxColumn column2 = new DataGridViewTextBoxColumn();
            column2.DataPropertyName = "Name";
            this.dataGridView1.Columns.Add(column2);

            DataGridViewComboBoxColumn column3 = new DataGridViewComboBoxColumn();
            column3.DataPropertyName = "Sex";
            column3.DataSource = GetSex();
            column3.ValueMember = "sId";
            column3.DisplayMember = "sValue";
            this.dataGridView1.Columns.Add(column3);

            DataGridViewTextBoxColumn column4= new DataGridViewTextBoxColumn();
            column4.DataPropertyName = "Comment";
            this.dataGridView1.Columns.Add(column4);

            List<Model> model = new List<Model>();
            model.Add(new Model() { Id = 1, Name = "Name1", Sex = "b", Comment = "boy" });
            model.Add(new Model() { Id = 2, Name = "Name2", Sex = "g", Comment = "gril" });
            model.Add(new Model() { Id = 3, Name = "Name3", Sex = "b", Comment = "boy" });
            model.Add(new Model() { Id = 4, Name = "Name4", Sex = "b", Comment = "boy" });
            this.dataGridView1.DataSource = model;
        }

        private List<sexClass> GetSex()
        {
            List<sexClass>  sexs = new List<sexClass>();
            sexs.Add(new sexClass() { sId = "b", sValue="boy"});
            sexs.Add(new sexClass() { sId = "g", sValue = "gril" });
            return sexs;
        }

        private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            if (dataGridView1.CurrentCell.RowIndex != -1 && dataGridView1.CurrentCell.OwningColumn is DataGridViewComboBoxColumn)
            {
                ((ComboBox)e.Control).SelectedIndexChanged += new EventHandler(Form1_SelectedIndexChanged);
            }
        }

        void Form1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (((ComboBox)sender).SelectedValue.ToString() == "b")
            {
                dataGridView1.CurrentRow.Cells[3].Value = "boy";
            }
            else
            {
                dataGridView1.CurrentRow.Cells[3].Value = "gril";
            }
            ((ComboBox)sender).SelectedIndexChanged -= new EventHandler(Form1_SelectedIndexChanged);
        }

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {

        }

        private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
        {
        }
    }

    class sexClass
    {
        public string sId{get;set;}
       
        public string sValue{get;set;}
    }
}