App_Code/CMMgr.cs

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using System;
using System.Data;
using System.Collections;
using System.ComponentModel;
using System.Data.SqlClient;
using System.IO;


	/// <summary>
	/// 此类包含一些操作数据库的方法
	/// </summary>
	public class CMMgr
	{
        
		#region 定义CMMgr类的私有变量
		private SqlCommand m_Cmd = null;
		private SqlConnection m_Conn = null;
		private SqlDataAdapter m_daTer = null;
		private SqlTransaction m_Trans = null;
		#endregion

		#region CMMgr类的静态函数
		/// <summary>
		/// 返回数据库连接字符串
		/// </summary>
		static public string GetConnectionString()
		{
            string LinkString = "";
            try
            {
                LinkString = System.Configuration.ConfigurationManager.AppSettings["DatabaseString"].ToString();
                if (LinkString == "")
                {
                    LinkString = "Data Source=(local);Initial Catalog=dang;Integrated Security=True"; 
                }
            }
            catch
            {
                LinkString = "Data Source=(local);Initial Catalog=dang;Integrated Security=True"; 
            }
            return LinkString;
		}

        /// <summary>
        /// 返回数据库连接字符串
        /// </summary>
        /// <param name="strLinkString">数据库连接字符串</param>
        /// <returns>数据库连接字符串</returns>
        static public string GetConnectionString(string LinkString)
        {
            return LinkString;
        }

		/// <summary>
		/// 返回某一数据库中的编号
		/// </summary>
		/// <param name="sysid">主键编号</param>
		/// <returns></returns>
		static public int GetNextIDValue(string sysid)
		{