蜗牛—C#程设之DataGridView数据库绑定控件

来源：互联网发布：阿里云服务器机房地址编辑：程序博客网时间：2024/06/06 10:04
建立一个窗体应用。
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.Data.SqlClient;namespace wjj{    public partial class Form1 : Form    {        string conStr = @"Data Source=.\SQLEXPRESS;Initial Catalog=TestDB;Integrated Security=True;";        string selStr = @"select No,Name,XB,Grade,JG from JBQK";        SqlConnection sqlCon;        SqlDataAdapter sda;        DataSet ds;        DataTable dt;        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            // TODO: 这行代码将数据加载到表“testDBDataSet.JBQK”中。您可以根据需要移动或删除它。            this.jBQKTableAdapter.Fill(this.testDBDataSet.JBQK);        }        private void button1_Click(object sender, EventArgs e)        {            sqlCon = new SqlConnection(conStr);            sda = new SqlDataAdapter(selStr, conStr);            ds = new DataSet();            sda.Fill(ds, "JBQK");   //填充数据集，实质是填充ds中的第0个表            dt = ds.Tables["JBQK"];            dataGridView1.DataSource = dt;   //将JBQK表的信息绑定到控件dataGridView        }        private void button2_Click(object sender, EventArgs e)        {            //将DataSet所做的更改与关联的SQL Server数据库的更改相协调            SqlCommandBuilder scb = new SqlCommandBuilder(sda);            DialogResult result;        //信息框的返回值            result = MessageBox.Show("确定保存修改过的数据吗？？","操作提示",MessageBoxButtons.OKCancel,MessageBoxIcon.Question);            if (result == DialogResult.OK) {                 dt = ds.Tables["JBQK"];                sda.Update(dt);      //更新数据库                dt.AcceptChanges();  //接受更新            }        }        private void button3_Click(object sender, EventArgs e)        {            Application.Exit();        }    }}
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