日期:2014-05-20  浏览次数:20735 次

Winfrom中连接数据库
谁能提供一个完整的Winfrom中连接数据库的类,先在这里谢谢了。。。
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百度 搜索 SqlHeler.cs 
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namespace ESWS
{
    using MySql.Data.MySqlClient;
    using System;
    using System.Collections.Generic;
    using System.Data;
    using System.Reflection;
    using ESWS;

    internal class MySqlHelper : IDisposable
    {
        private MySqlCommand mySqlCommand;
        private MySqlConnection mySqlConnection;
        private MySqlDataAdapter mySqlDataAdapter;
        private MySqlTransaction myTransaction;

        protected virtual void AddParameters(MySqlCommand command, MySqlParameter[] parameters)
        {
            foreach (MySqlParameter parameter in parameters)
            {
                command.Parameters.AddWithValue(parameter.ParameterName, parameter.Value);
            }
        }

        internal void BegionTransaction()
        {
            if (this.DBConnection.State != ConnectionState.Open)
            {
                this.DBConnection.Open();
            }
            this.myTransaction = this.DBConnection.BeginTransaction();
        }

        internal void Commit()
        {
            this.DBTransaction.Commit();
        }

        protected MySqlCommand CreateCommand(string commandText)
        {
            return this.CreateCommand(commandText, CommandType.Text);
        }

        protected MySqlCommand CreateCommand(string commandText, CommandType commandType)
        {
            return this.CreateCommand(commandText, commandType, null);
        }

        protected MySqlCommand CreateCommand(string commandText, MySqlParameter[] parameters)
        {
            return this.CreateCommand(commandText, CommandType.Text, parameters);
        }

        protected MySqlCommand CreateCommand(string commandText, CommandType commandType, MySqlParameter[] parameters)
        {
            return this.CreateCommand(this.DBConnection, commandType, commandText, 30, parameters);
        }

        protected MySqlCommand CreateCommand(MySqlConnection connection, CommandType commandType, string commandText, int commandTimeout, MySqlParameter[] parameters)
        {
            MySqlCommand mySqlCommand;
            try
            {
                using (this.mySqlCommand = new MySqlCommand())
                {
                    if (connection.State != ConnectionState.Open)
                    {
                        connection.Open();