App_Code/MySqlHelper.cs

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using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using MySql.Data.MySqlClient;

/// <summary>
///MySqlHelper 的摘要说明
/// </summary>
public class MySqlHelper
{
    public MySqlHelper()
    {
    }
    /// <summary>
    /// 执行一条插入SQL语句,返回插入记录的主键id
    /// </summary>
    /// <param name="connection">MysqlConnection对象</param>
    /// <param name="sql">Sql语句</param>
    /// <param name="ps">Sql语句中的参数</param>
    /// <returns>返回插入记录的主键id</returns>
    public static long Insert(MySqlConnection connection, String sql, MySqlParameter[] ps)
    {
        if (connection.State.ToString() != "Open")
        {
            connection.Open();
        }
        MySqlCommand cmd = connection.CreateCommand();
        cmd.CommandText = sql;
        cmd.Parameters.AddRange(ps);
        cmd.ExecuteNonQuery();
        long result = cmd.LastInsertedId;
        connection.Close();
        return result;
    }
    /// <summary>
    /// 执行一条插入SQL语句,返回插入记录的主键id
    /// </summary>
    /// <param name="connection">连接字符串</param>
    /// <param name="sql">Sql语句</param>
    /// <param name="ps">Sql语句中的参数</param>
    /// <returns>返回插入记录的主键id</returns>
    public static long Insert(String connectionString, String sql, MySqlParameter[] ps)
    {
        MySqlConnection connection = new MySqlConnection(connectionString);
        return Insert(connection, sql, ps);
    }
    /// <summary>
    /// 执行一条删除SQL语句,返回受影响的行数
    /// </summary>
    /// <param name="connection">MysqlConnection对象</param>
    /// <param name="sql">SQL语句,如delete from tablename where ...</param>
    /// <param name="ps">参数列表</param>