c# 数据库数据与DataGridView表控件的绑定

public Form1()

{

   InitializeComponent();



   //连接数据库

   string str = "Data Source=IP;Initial Catalog=数据库名称;Persist Security Info=True;User ID=**; Password=";

   ConnectDatebase(str); 

}



void ConnectDatebase(string sql)

{

   SqlConnection connection = new SqlConnection();

   connection.ConnectionString = sql;

   connection.Open();



   SqlDataAdapter adapter = new SqlDataAdapter("select *from steelname", connection);

   DataSet dsMain = new DataSet();

   adapter.Fill(dsMain, "steelname");

   this.dataGridView1.DataSource = dsMain;

   this.dataGridView1.DataMember = "steelname";

}

 

对于数据库的更新操作

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.SqlClient;

using System.Data.Common;



namespace DateManagerTools

{

    public partial class Form1 : Form

    {

        private DataSet dsMain;

        private SqlDataAdapter adapter;

        public Form1()

        {

            InitializeComponent();

        }



        private SqlConnection getConnection()

        {

            SqlConnection connection = new SqlConnection();

            connection.ConnectionString = "Data Source=IP;Initial Catalog=数据库名称;Persist Security Info=True;User ID=**; Password=";

            return connection;

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            InitAdapter();

            getData();

            BindingControl();

        }



        /// <summary>

        /// 初始化adapter变量

        /// </summary>

        private void InitAdapter()

        {

            SqlConnection connection = this.getConnection();

            adapter = new SqlDataAdapter("select * from steelname", connection);

            adapter.FillLoadOption = LoadOption.OverwriteChanges;

            //新增

            SqlCommand InsertCommand = new SqlCommand();

            InsertCommand.Connection = connection;

            InsertCommand.CommandText = "insert into steelname,Name) values(@ID,@Code,@Name)";

            InsertCommand.Parameters.Add("@ID", SqlDbType.Int, 4, "ID");

            InsertCommand.Parameters.Add("@Code", SqlDbType.Char, 20, "Code");

            InsertCommand.Parameters.Add("@Name", SqlDbType.VarChar, 50, "Name");

            adapter.InsertCommand = InsertCommand;

            //修改

            SqlCommand UpdateCommand = new SqlCommand();

            UpdateCommand.Connection = connection;

            UpdateCommand.CommandText = "update steelname set Code=@Code,Name=@Name where ID=@ID";

            UpdateCommand.Parameters.Add("@ID", SqlDbType.Int, 4, "ID");

            UpdateCommand.Parameters.Add("@Code", SqlDbType.Char, 20, "Code");

            UpdateCommand.Parameters.Add("@Name", SqlDbType.VarChar, 50, "Name");

            adapter.UpdateCommand = UpdateCommand;

            //删除

            SqlCommand DeleteCommand = new SqlCommand();

            DeleteCommand.Connection = connection;

            DeleteCommand.CommandText = "delete steelname where steelname_id=@steelname_id";

            DeleteCommand.Parameters.Add("@steelname_id", SqlDbType.Int, 4, "steelname_id");

            adapter.DeleteCommand = DeleteCommand;

            //添加表映射

            //DataTableMapping TableMapping = new DataTableMapping();

            //TableMapping = adapter.TableMappings.Add("Users", "Users");

            //TableMapping.ColumnMappings.Add("Code", "Code");

            //TableMapping.ColumnMappings.Add("Name", "Name");

            //TableMapping.DataSetTable = "SteelName";

        }



        /// <summary>

        /// 把控件绑定到数据源

        /// </summary>

        private void BindingControl()

        {

            this.dataGridView1.DataSource = dsMain;

            this.dataGridView1.DataMember = "steelname";

            //this.dataGridView1.Columns[0].Width = 40;

            //this.txtID.DataBindings.Add("Text", dsMain, "Users.ID");

            //this.txtCode.DataBindings.Add("Text", dsMain, "Users.Code");

            //this.txtName.DataBindings.Add("Text", dsMain, "Users.Name");

        }



        /// <summary>

        /// 从Sql Server中获取数据

        /// </summary>

        private void getData()

        {

            if (dsMain == null)

            {

                dsMain = new DataSet();

            }

            else

            {

                dsMain.Clear();

            }

            adapter.Fill(dsMain, "steelname");

        }



        //新增

        private void button1_Click(object sender, EventArgs e)

        {

            this.BindingContext[dsMain, "steelname"].AddNew();

            this.BindingContext[dsMain, "steelname"].EndCurrentEdit();//结束编译

            //this.txtCode.Focus();

        }



        //删除

        private void button2_Click(object sender, EventArgs e)

        {

            if (this.BindingContext[dsMain, "steelname"].Position > -1)

            {

                if (MessageBox.Show("是否要删除此记录？", "提示", MessageBoxButtons.YesNo) == DialogResult.Yes)

                {

                    this.BindingContext[dsMain, "steelname"].RemoveAt(this.BindingContext[dsMain, "steelname"].Position);

                    Save();

                }

            }

        }



        //保存

        private void button3_Click(object sender, EventArgs e)

        {

            this.BindingContext[dsMain, "steelname"].EndCurrentEdit();

            Save();

        }



        //刷新

        private void button4_Click(object sender, EventArgs e)

        {

            getData();

        }



        private void Save()

        {

            try

            {

                adapter.Update(dsMain, "steelname");

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

        }

    }

}

 表中的某一列有ComBox绑定在一起：

this.comboBox1.DataSource = dsMain.Tables[0];   //tables[0]第一列

comboBox1.DisplayMember = "steeltype_id";

comboBox1.ValueMember = "steeltype_id";