SQLserver--用存储过程在winform的dataGridView空间中显示数据库表

数据库代码

create proc usp_TblClass_selectAll
as
begin
select * from TblClass
end

winform代码

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;
using System.Configuration;
using System.Data.sqlClient;

namespace _11._12
{
    public partial class Form1 : Form
    {
        string constr = ConfigurationManager.ConnectionStrings["ClassconStr"].ConnectionString;
     
        public Form1()
        {
            InitializeComponent();
        }

        private void dataGridView1_CellContentClick(object sender,DataGridViewCellEventArgs e)
        {

        }

        private void Form1_Load(object sender,EventArgs e)
        {
            List<ClassModel2> list = new List<ClassModel2>();
            using (sqlConnection con = new sqlConnection(constr))
            {
                con.open();
                string sp_name = "usp_TblClass_selectAll";
                using(sqlCommand cmd=new sqlCommand (sp_name,con))
                {
                    cmd.CommandType = CommandType.StoredProcedure;
                    using(sqlDataReader reader=cmd.ExecuteReader())
                    {
                        if (reader.HasRows)
                        {
                            while (reader.Read())
                            {
                                ClassModel2 model = new ClassModel2();
                                model.clsName=reader.Isdbnull(reader.Getordinal("cName"))?string.Empty:reader.GetString(reader.Getordinal("cName"));
                                model.clsDesc = reader.Isdbnull(reader.Getordinal("cDescription")) ? string.Empty : reader.GetString(reader.Getordinal("cDescription"));
                                list.Add(model);
                            }
                        }
                    }
                }
                dataGridView1.DataSource = list;
            }
        }
    }
}