数据库DataHelper

【实例简介】近段时间开发的一个总结
【实例截图】
【核心代码】

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#region  执行简单SQL语句

        /// <summary>
        /// 执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        int rows = cmd.ExecuteNonQuery();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }

        /// <summary>
        /// 新增重载，执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="connection">SqlConnection对象</param>
        /// <param name="trans">SqlTransaction事件</param>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(SqlConnection connection, SqlTransaction trans, string SQLString)
        {
            using (SqlCommand cmd = new SqlCommand(SQLString, connection))
            {
                try
                {
                    cmd.Connection = connection;
                    cmd.Transaction = trans;
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    trans.Rollback();
                    throw e;
                }
            }
        }

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