datagridview一次修改多条记录

来源：互联网发布：sql语句括号的用法编辑：程序博客网时间：2024/05/16 21:04

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

namespace dataGridViewUse
{
    public partial class Form4 : Form
    {
        private DataSet ds = new DataSet();
        public OleDbDataAdapter ad = new OleDbDataAdapter();
        private OleDbCommandBuilder ocb = new OleDbCommandBuilder();
        public Form4()
        {
            InitializeComponent();
        }

        private void Form4_Load(object sender, EventArgs e)
        {
            disPlay();
        }

//显示表里的数据
        public void disPlay()
        {
           // OleDbConnection myCon = new OleDbConnection("Provider=SQLOLEDB.1;Data Source=SDL;Persist Security Info=True;Password=1234;User ID=sa;Initial Catalog=ABC");
            OleDbConnection myCon = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:/My Documents/Visual Studio 2005/Projects/dataGridViewUse/dataGridViewUse/表.mdb");

            ad = new OleDbDataAdapter("select * from Area", myCon);
            ocb = new OleDbCommandBuilder(ad);
            ds = new DataSet();
            ad.Fill(ds, "Area");
            ocb = new OleDbCommandBuilder(ad);//系统自动生产insert,add,update,del语句,切记设置表的主键

dataGridView1.DataSource = ds.Tables[0];
}

//保存datagridview里的记录

        private void BtnEdit_Click(object sender, EventArgs e)
        {
            try
            {
                ad.Update(ds.Tables[0]);
                ds.Tables["Area"].AcceptChanges();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void BtnFrush_Click(object sender, EventArgs e)
        {
            ds.Tables[0].AcceptChanges();

        }

//增加一个空行

private void btnAdd_Click(object sender, EventArgs e)
        {
            //dataGridView1.AllowUserToAddRows = true;
           DataRow dtrow = ds.Tables[0].NewRow();

                ds.Tables[0].Rows.Add(dtrow);
                dataGridView1.DataSource = ds.Tables[0];


        }
    }
}