添加按钮到数据库的代码怎么写啊，

Access数据库

要添加什么数据库的么，要是sql就写sql语句连接啊

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
/// <summary>
/// AccessHelper 的摘要说明
/// </summary>
public class AccessHelper
{
protected static OleDbConnection conn = new OleDbConnection();
protected static OleDbCommand comm = new OleDbCommand(); public AccessHelper()
{
//
// TODO: 在此处添加构造函数逻辑
//
} /// <summary>
/// 打开数据库
/// </summary>
private static void openConnection()
{
if (conn.State == ConnectionState.Closed)
{
conn.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + AppDomain.CurrentDomain.BaseDirectory+ConfigurationManager.AppSettings["myconn"].ToString() + ";Jet OLEDB:Database PassWord=sa";
comm.Connection = conn;
try
{
conn.Open();
}
catch (Exception e)
{ throw new Exception(e.Message); } } }
/// <summary>
/// 关闭数据库
/// </summary>
private static void closeConnection()
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
conn.Dispose();
comm.Dispose();
}
}
/// <summary>
/// 执行sql语句
/// </summary>
/// <param name="sqlstr"></param>
public static void excuteSql(string sqlstr)
{
try
{
openConnection();
comm.CommandType = CommandType.Text;
comm.CommandText = sqlstr;
comm.ExecuteNonQuery();
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{ closeConnection(); }
}
/// <summary>
/// 返回指定sql语句的OleDbDataReader对象，使用时请注意关闭这个对象。
/// </summary>
/// <param name="sqlstr"></param>
/// <returns></returns>
public static OleDbDataReader dataReader(string sqlstr)
{
OleDbDataReader dr = null;
try
{
openConnection();
comm.CommandText = sqlstr;
comm.CommandType = CommandType.Text; dr = comm.ExecuteReader(CommandBehavior.CloseConnection);
}
catch
{
try
{
dr.Close();
closeConnection();
}
catch { }
}
return dr;
}
/// <summary>
I

/// 返回指定sql语句的OleDbDataReader对象,使用时请注意关闭
/// </summary>
/// <param name="sqlstr"></param>
/// <param name="dr"></param>
public static void dataReader(string sqlstr, ref OleDbDataReader dr)
{
try
{
openConnection();
comm.CommandText = sqlstr;
comm.CommandType = CommandType.Text;
dr = comm.ExecuteReader(CommandBehavior.CloseConnection);
}
catch
{
try
{
if (dr != null && !dr.IsClosed)
dr.Close();
}
catch
{
}
finally
{
closeConnection();
}
}
}
/// <summary>
/// 返回指定sql语句的dataset
/// </summary>
/// <param name="sqlstr"></param>
/// <returns></returns>
public static DataSet dataSet(string sqlstr)
{
DataSet ds = new DataSet();
OleDbDataAdapter da = new OleDbDataAdapter();
try
{
openConnection();
comm.CommandType = CommandType.Text;
comm.CommandText = sqlstr;
da.SelectCommand = comm;
da.Fill(ds); }
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
closeConnection();
}
return ds;
}
/// <summary>
/// 返回指定sql语句的dataset
/// </summary>
/// <param name="sqlstr"></param>
/// <param name="ds"></param>
public static void dataSet(string sqlstr, ref DataSet ds)
{
OleDbDataAdapter da = new OleDbDataAdapter();
try
{
openConnection();
comm.CommandType = CommandType.Text;
comm.CommandText = sqlstr;
da.SelectCommand = comm;
da.Fill(ds);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
closeConnection();
}
}
/// <summary>
/// 返回指定sql语句的datatable
/// </summary>
/// <param name="sqlstr"></param>
/// <returns></returns>
public static DataTable dataTable(string sqlstr)
{
DataTable dt = new DataTable();
OleDbDataAdapter da = new OleDbDataAdapter();
try
{
openConnection();
comm.CommandType = CommandType.Text;
comm.CommandText = sqlstr;
da.SelectCommand = comm;
da.Fill(dt);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
closeConnection();
}
return dt;
}
/// <summary>
/// 返回指定sql语句的datatable
/// </summary>
/// <param name="sqlstr"></param>
/// <param name="dt"></param>
public static void dataTable(string sqlstr, ref DataTable dt)
{
OleDbDataAdapter da = new OleDbDataAdapter();
try
{
openConnection();
comm.CommandType = CommandType.Text;
comm.CommandText = sqlstr;
da.SelectCommand = comm;
da.Fill(dt);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
closeConnection();
}
}
/// <summary>
/// 返回指定sql语句的dataview
/// </summary>
/// <param name="sqlstr"></param>
/// <returns></returns>
public static DataView dataView(string sqlstr)
{
OleDbDataAdapter da = new OleDbDataAdapter();
DataView dv = new DataView();
DataSet ds = new DataSet();
try
{
openConnection();
comm.CommandType = CommandType.Text;
comm.CommandText = sqlstr;
da.SelectCommand = comm;
da.Fill(ds);
dv = ds.Tables[0].DefaultView;
}
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{
closeConnection();
}
return dv;
}
}

楼上还行。。直接上AccessHelper，估计楼主看不懂呀。。。。
我给你写一个简单的吧
Click事件下写
string accesscon = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=数据库路径;Persist Security Info=False;";
OleDbConnection con = new OleDbConnection(accesscon);
con.Open();
string sql = "insert into 表名 (字段一，字段二，字段三) values('" + textBox1.Text + "','" + textBox2.Text + "','" + textBox3.Text + "')"; //插入的sql语句 OleDbCommand com = new OleDbCommand(sql, con);
com.ExecuteNonQuery();
com.Dispose();
con.Close();
MessageBox.Show("存入完成");

你先试试 简单的数据库连接，用查询，然后用insert 语句改写

去看看传智的视频吧。。这么复制代码也不是个事儿