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    using System;
    using System.Data;
    using System.Configuration;
    using System.Collections;
    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.SqlClient;
    using System.Text;

    namespace domain.UI.News.Controls
    {
        public partial class NewsShow : System.Web.UI.UserControl
        {
            private domain.SQLDB.DbAccess _db;
            private string _outModel;
            private string _inModel;
            private string _columns;
            private string _sql;
            private string _split;
            private string _firstModel;
            private string _firstColumn;
     
            public domain.SQLDB.DbAccess Db
            {
                set { this._db = value; }
                get { return this._db; }
            }
            public string Sql
            {
                set { this._sql = value; }
                get {
                    if (string.IsNullOrEmpty(_sql))
                        _sql = "";
                    return this._sql; }
            }
            public string OutModel
            {
                set { this._outModel = value; }
                get {
                    if (string.IsNullOrEmpty(_outModel))
                        _outModel = "";
                    return this._outModel; }
            }
            public string InModel
            {
                set { this._inModel = value; }
                get {
                    if (string.IsNullOrEmpty(_inModel))
                        _inModel = "";
                    return this._inModel; }
            }
            public string Columns
            {
                set { this._columns = value; }
                get {
                    if (string.IsNullOrEmpty(_columns))
                        _columns = "";
                    return this._columns; }
            }
            public string Split
            {
                set { this._split = value; }
                get
                {
                    if (string.IsNullOrEmpty(_split))
                        _split = "";
                    return this._split;
                }
            }
            public string FirstModel
            {
                set { this._firstModel = value; }
                get
                {
                    if (string.IsNullOrEmpty(_firstModel))
                        _firstModel = "";
                    return this._firstModel;
                }
            }
            public string FirstColumn
            {
                set { this._firstColumn = value; }
                get
                {
                    if (string.IsNullOrEmpty(_firstColumn))
                        _firstColumn = "";
                    return this._firstColumn;
                }
            }
           
           
       
            protected void Page_Load(object sender, EventArgs e)
            {
            
            }
            public string getTableData()
            {
                System.Text.StringBuilder tempSb = new System.Text.StringBuilder("");
                if (FirstModel.Length > 0)
                 goto HasFirst;
                else
                 goto NoFirst;

                    HasFirst:
                    {
                        string[] columns = Columns.Split(',');
                        DataTable dt = new DbAccess().GetTable(Sql);
                       
                        if (dt != null)
                        {
                            for (int j = 0; j < dt.Rows.Count;j++)
                            {
                                if (j == 0)
                                {
                                    columns = FirstColumn.Split(',');
                                    DataRow dr = dt.Rows[j];
                                    string[] tempStr = new string[columns.Length];
                                    for (int i = 0; i < tempStr.Length; i++)
                                    {
                                        tempStr[i] = Convert.ToString(dr[columns[i]]);
                                    }
                                    tempSb.AppendFormat(FirstModel,tempStr).Append(_split);
                                }
                                else
                                {
                                    DataRow dr = dt.Rows[j];
                                    string[] tempStr = new string[columns.Length];
                                    for (int i = 0; i < tempStr.Length; i++)
                                    {
                                        tempStr[i] = Convert.ToString(dr[columns[i]]);
                                    }
                                    tempSb.AppendFormat(InModel, tempStr).Append(_split);
                                }
                             
                            }
                        }
                    }
                    NoFirst: {
                    string[] columns = Columns.Split(',');
                    DataTable dt = new DbAccess().GetTable(Sql);
                 
                    if (dt != null)
                    {
                        foreach (DataRow dr in dt.Rows)
                        {

                           string[] tempStr = new string[columns.Length];
                            for (int i = 0; i < tempStr.Length; i++)
                            {
                                tempStr[i] = Convert.ToString(dr[columns[i]]);
                            }

                           tempSb.AppendFormat(InModel, tempStr).Append(_split);
                        }
                    }
                    }

                return OutModel.Length > 0 ? (string.Format(OutModel, (tempSb.Length > 0 ? (tempSb.Remove(tempSb.Length - Split.Length, Split.Length).ToString()) : (tempSb.ToString())))) : (tempSb.Length > 0 ? (tempSb.Remove(tempSb.Length - Split.Length, Split.Length).ToString()) : (tempSb.ToString()));

            }
        }

        public class DbAccess
        {
            SqlConnection conn = null;
            SqlCommand cmd = null;
            public DbAccess()
            {
                //
                // TODO: 在此处添加构造函数逻辑
                //
                conn = new SqlConnection();
                conn.ConnectionString = Convert.ToString(System.Configuration.ConfigurationSettings.AppSettings["datasource"]);           
                cmd = new SqlCommand();
                cmd.Connection = conn;
                cmd.CommandTimeout = 0;

            }
            public DbAccess(string constr)
            {

                //
                // TODO: 在此处添加构造函数逻辑
                //
                conn = new SqlConnection();
                conn.ConnectionString = constr;// "initial catalog=idyan_new;data source=.;user id=bt;password=btbtbtbt";
                cmd = new SqlCommand();
                cmd.Connection = conn;
                cmd.CommandTimeout = 0;

            }
            /// <summary>
            /// 获取数据根据sql语句
            /// </summary>
            /// <param name="sql"></param>
            /// <returns></returns>
            public DataTable GetTable(string sql)
            {
                DataSet ds = new DataSet();
                try
                {
                    cmd.CommandText = sql;
                    cmd.CommandType = CommandType.Text;
                    SqlDataAdapter da = new SqlDataAdapter();
                    da.SelectCommand = cmd;
                    da.Fill(ds);
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;

                }
                return ds.Tables[0] ?? new DataTable();
            }
            /// <summary>
            /// 获取数据根据sql语句
            /// </summary>
            /// <param name="sql"></param>
            /// <returns></returns>
            public DataSet GetDataSet(string sql)
            {
                DataSet ds = new DataSet();

                try
                {
                    cmd.CommandText = sql;
                    cmd.CommandType = CommandType.Text;
                    SqlDataAdapter da = new SqlDataAdapter();
                    da.SelectCommand = cmd;

                    da.Fill(ds);
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;

                }
                return ds;
            }
            /// <summary>
            /// 获取数据根据sql语句
            /// </summary>
            /// <param name="sql"></param>
            /// <returns></returns>
            public DataSet GetDataSet(string sql, SqlParameter[] pas)
            {
                DataSet ds = new DataSet();

                try
                {
                    cmd.Parameters.Clear();
                    cmd.CommandText = sql;
                    foreach (SqlParameter pa in pas)
                    {
                        cmd.Parameters.Add(pa);
                    }
                    cmd.CommandType = CommandType.Text;
                    SqlDataAdapter da = new SqlDataAdapter();
                    da.SelectCommand = cmd;

                    da.Fill(ds);
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;

                }
                return ds;
            }
            /// <summary>
            /// 获取数据根据sql语句 带参数 的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public DataTable GetTable(string sql, params SqlParameter[] pas)
            {
                DataSet ds = new DataSet();
                try
                {
                    cmd.CommandText = sql;
                    cmd.CommandType = CommandType.Text;
                    SqlDataAdapter da = new SqlDataAdapter();
                    da.SelectCommand = cmd;
                    cmd.Parameters.Clear();

                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }


                    da.Fill(ds);
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return ds.Tables[0] ?? new DataTable();
            }
            /// <summary>
            /// 获取数据根据sql语句 带参数 的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public DataTable GetProcTable(string procname, params SqlParameter[] pas)
            {
                DataSet ds = new DataSet();
                try
                {
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = procname;
                    //cmd.CommandText = sql;
                    SqlDataAdapter da = new SqlDataAdapter();
                    da.SelectCommand = cmd;
                    cmd.Parameters.Clear();

                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }

                    da.Fill(ds);
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return ds.Tables[0] ?? new DataTable();
            }
            /// <summary>
            /// 获取数据根据sql语句 带参数 的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public DataTable GetProcCursorTable(string procname, params SqlParameter[] pas)
            {
                DataSet ds = new DataSet();
                try
                {
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = procname;
                    //cmd.CommandText = sql;
                    SqlDataAdapter da = new SqlDataAdapter();
                    da.SelectCommand = cmd;
                    cmd.Parameters.Clear();

                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }

                    da.Fill(ds);
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return ds.Tables[1] ?? new DataTable();
            }
            /// <summary>
            /// 获取数据根据sql语句 带参数 的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public int GetProcState(string procname, params SqlParameter[] pas)
            {
                int state = 0;
                try
                {
                    OpenConn();
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = procname;
                    cmd.Parameters.Clear();
                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }
                    cmd.ExecuteNonQuery();
                    CloseConn();
                    state = Convert.ToInt32(pas[pas.Length - 1].Value);

                }
                catch
                {
                    return 0;
                }
                return state;
            }
            /// <summary>
            /// 获取数据根据sql语句 带参数 的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public int GetProcStateNo(string procname, params SqlParameter[] pas)
            {
                int state = 0;
                try
                {
                    OpenConn();
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.CommandText = procname;
                    cmd.Parameters.Clear();
                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }
                    cmd.ExecuteNonQuery();
                    CloseConn();
                    state = 1;
                 

                }
                catch (Exception ex)
                {

                    return 0;
                }
                return state;
            }
            /// <summary>
            /// 根据sql语句返回跟新状态
            /// </summary>
            /// <param name="sql"></param>
            /// <returns></returns>
            public bool GetState(string sql)
            {
                bool succ = false;
                try
                {
                    cmd.CommandType = CommandType.Text;
                    cmd.CommandText = sql;
                    OpenConn();
                    succ = cmd.ExecuteNonQuery() > 0 ? (true) : (false);
                    CloseConn();
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return false;
                }
                return succ;

            }
            /// <summary>
            /// 根据sql语句返回跟新状态带参数的
            /// </summary>
            /// <param name="sql">sql语句</param>
            /// <param name="pas">参数的集合</param>
            /// <returns></returns>
            public bool GetState(string sql, params SqlParameter[] pas)
            {
                bool succ = false;
                try
                {
                    cmd.CommandType = CommandType.Text;
                    cmd.CommandText = sql;
                    cmd.Parameters.Clear();

                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }
                    OpenConn();
                    succ = cmd.ExecuteNonQuery() > 0 ? (true) : (false);
                    CloseConn();
                }
                catch (Exception ex)
                {             
                    return false;
                }
                return succ;

            }
            /// <summary>
            /// 根据sql语句返回第一个单元格的数据
            /// </summary>
            /// <param name="sql"></param>
            /// <returns></returns>
            public string GetOne(string sql)
            {
                string res = "";
                try
                {
                    cmd.CommandType = CommandType.Text;
                    cmd.CommandText = sql;
                    OpenConn();
                    res = cmd.ExecuteScalar() == null ? ("") : (Convert.ToString(cmd.ExecuteScalar()));
                    CloseConn();
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return res;
            }
            /// <summary>
            ///  根据sql语句返回第一个单元格的数据带参数的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public string GetOne(string sql, params SqlParameter[] pas)
            {
                string res = "";
                try
                {
                    cmd.CommandType = CommandType.Text;
                    cmd.CommandText = sql;
                    cmd.Parameters.Clear();

                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }
                    OpenConn();
                    res = cmd.ExecuteScalar() == null ? ("") : (Convert.ToString(cmd.ExecuteScalar()));
                    CloseConn();
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return res;
            }
            /// <summary>
            /// 返回数据的DataReader
            /// </summary>
            /// <param name="sql"></param>
            /// <returns></returns>
            public SqlDataReader GetDataReader(string sql)
            {
                SqlDataReader dr = null;
                try
                {
                    cmd.CommandType = CommandType.Text;
                    conn.Open();
                    cmd.CommandText = sql;
                    dr = cmd.ExecuteReader();
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return dr;
            }
            /// <summary>
            /// 返回数据的DataReader带参数的
            /// </summary>
            /// <param name="sql"></param>
            /// <param name="pas"></param>
            /// <returns></returns>
            public SqlDataReader GetDataReader(string sql, params SqlParameter[] pas)
            {
                SqlDataReader dr = null;
                try
                {
                    cmd.CommandType = CommandType.Text;
                    conn.Open();
                    cmd.Parameters.Clear();

                    foreach (SqlParameter temppa in pas)
                    {
                        cmd.Parameters.Add(temppa);
                    }

                    cmd.CommandText = sql;
                    dr = cmd.ExecuteReader();
                }
                catch (Exception ex)
                {

                    this.ShowError(ex.Message);
                    return null;
                }
                return dr;
            }
            /// <summary>
            /// 事务处理函数
            /// </summary>
            /// <param name="al"></param>
            /// <returns></returns>
            public bool GetTranState(ArrayList al)
            {
                cmd.CommandType = CommandType.Text;
                OpenConn();
                SqlTransaction tran = conn.BeginTransaction();
                cmd.Transaction = tran;
                try
                {
                    for (int i = 0; i < al.Count; i++)
                    {
                        cmd.CommandText = Convert.ToString(al[i]);
                        cmd.ExecuteNonQuery();
                    }

                    tran.Commit();
                    CloseConn();
                }
                catch (Exception ex)
                {

                    tran.Rollback();
                    return false;
                }
                return true;

            }
            /// <summary>
            /// 事务处理函数
            /// </summary>
            /// <param name="al"></param>
            /// <returns></returns>
            public bool GetTranStateParameter(ArrayList al)
            {
                cmd.CommandType = CommandType.Text;
                OpenConn();
                SqlTransaction tran = conn.BeginTransaction();
                cmd.Transaction = tran;
                try
                {
                    for (int i = 0; i < al.Count; i++)
                    {
                        SqlTranModel stm = (SqlTranModel)al[i];
                        cmd.CommandText = Convert.ToString(stm.Sql);
                        SqlParameter[] pas = stm.Pas;
                        cmd.Parameters.Clear();
                        foreach (SqlParameter temp in pas)
                        {
                            cmd.Parameters.Add(temp);
                        }
                        cmd.ExecuteNonQuery();
                    }

                    tran.Commit();
                    CloseConn();
                }
                catch (Exception ex)
                {

                    tran.Rollback();
                    return false;
                }
                return true;

            }
            /// <summary>
            /// 分页函数
            /// </summary>
            /// <param name="pagesize"></param>
            /// <param name="columns"></param>
            /// <param name="tablename"></param>
            /// <param name="pid"></param>
            /// <param name="order"></param>
            /// <param name="current"></param>
            /// <returns></returns>
            public DataTable GetPageData(int current, int pagesize, string columns, string tablename, string pid, string where, string order)
            {
                current = current - 1 >= 0 ? (current - 1) : (0);
                string sql = string.Format("select top {0} {1} from {2} where 1=1 and {3} not in(select top {4}{3} from {2} where 1=1{5}  order by {6}){5} order by {6}", pagesize, columns, tablename, pid, current * pagesize, where, order);
                return GetTable(sql);
            }
            /// <summary>
            /// 分页存储过程的调用
            /// </summary>
            /// <param name="current"></param>
            /// <param name="pagesize"></param>
            /// <param name="columns"></param>
            /// <param name="tablename"></param>
            /// <param name="pid"></param>
            /// <param name="where"></param>
            /// <param name="order"></param>
            /// <returns></returns>
            public DataTable GetProcPageData(int current, int pagesize, string columns, string tablename, string pid, string where, string order, string ordertype)
            {
                SqlParameter[] pas = { new SqlParameter("@PageIndex", current), new SqlParameter("@PageSize", pagesize), new SqlParameter("@Columns", columns), new SqlParameter("@Tablename", tablename), new SqlParameter("@Where", where), new SqlParameter("@Order", order), new SqlParameter("@OrderType", ordertype), new SqlParameter("@Pid", pid) };
                return GetProcTable("Pages", pas);
         
            }
            /// <summary>
            /// 分页存储过程的调用
            /// </summary>
            /// <param name="current"></param>
            /// <param name="pagesize"></param>
            /// <param name="columns"></param>
            /// <param name="tablename"></param>
            /// <param name="pid"></param>
            /// <param name="where"></param>
            /// <param name="order"></param>
            /// <returns></returns>
            public DataTable GetProcData(int current, int pagesize, string columns, string tablename, string pid, string where, string order, string resultCount, string distinct)
            {
                SqlParameter[] pas = { new SqlParameter("@TableNames", SqlDbType.NVarChar, 200), new SqlParameter("@PrimaryKey", SqlDbType.NVarChar, 100), new SqlParameter("@Order", SqlDbType.NVarChar, 200), new SqlParameter("@CurrentPage", SqlDbType.Int), new SqlParameter("@PageSize", SqlDbType.Int), new SqlParameter("@Fields", SqlDbType.NVarChar, 800), new SqlParameter("@Filter", SqlDbType.NVarChar, 1000), new SqlParameter("@ResultCount", SqlDbType.NVarChar, 12), new SqlParameter("@distinct", SqlDbType.NVarChar, 12) };
                pas[0].Value = tablename;
                pas[1].Value = pid;
                pas[2].Value = order;
                pas[3].Value = current;
                pas[4].Value = pagesize;
                pas[5].Value = columns;
                pas[6].Value = where;
                pas[7].Value = resultCount;
                pas[8].Value = distinct;
                return this.GetProcTable("Pages", pas);
           
            }
            /// <summary>
            /// 分页存储过程的调用
            /// </summary>
            /// <param name="current"></param>
            /// <param name="pagesize"></param>
            /// <param name="columns"></param>
            /// <param name="tablename"></param>
            /// <param name="pid"></param>
            /// <param name="where"></param>
            /// <param name="order"></param>
            /// <returns></returns>
            public DataTable GetProcAdminData(int current, int pagesize, string columns, string tablename, string pid, string where, string order, string resultCount, string distinct)
            {
                SqlParameter[] pas = { new SqlParameter("@TableNames", SqlDbType.NVarChar, 200), new SqlParameter("@PrimaryKey", SqlDbType.NVarChar, 100), new SqlParameter("@Order", SqlDbType.NVarChar, 200), new SqlParameter("@CurrentPage", SqlDbType.Int), new SqlParameter("@PageSize", SqlDbType.Int), new SqlParameter("@Fields", SqlDbType.NVarChar, 800), new SqlParameter("@Filter", SqlDbType.NVarChar, 200), new SqlParameter("@ResultCount", SqlDbType.NVarChar, 24), new SqlParameter("@Distinct", SqlDbType.NVarChar, 12) };
                pas[0].Value = tablename;
                pas[1].Value = pid;
                pas[2].Value = order;
                pas[3].Value = current;
                pas[4].Value = pagesize;
                pas[5].Value = columns;
                pas[6].Value = where;
                pas[7].Value = resultCount;
                pas[8].Value = distinct;
                return this.GetProcTable("Pages", pas);

            }
            /// <summary>
            /// 打开连接
            /// </summary>
            public void OpenConn()
            {
                if (conn.State != ConnectionState.Open)
                {
                    try
                    {
                        conn.Open();
                    }
                    catch (Exception ex)
                    {

                        this.ShowError(ex.Message);
                        return;
                    }
                }
            }
            /// <summary>
            /// 关闭连接
            /// </summary>
            public void CloseConn()
            {
                if (conn.State != ConnectionState.Closed)
                {
                    try
                    {
                        conn.Close();

                    }
                    catch (Exception ex)
                    {

                        this.ShowError(ex.Message);
                        return;
                    }
                }
            }
            public void DisposeConn()
            {
                try
                {
                    if (conn.State != ConnectionState.Closed)
                    {
                        try
                        {
                            conn.Close();

                        }
                        catch (Exception ex)
                        {

                            this.ShowError(ex.Message);
                            return;
                        }
                    }
                }
                catch
                {

                }
            }

            /// <summary>
            /// 弹出错误的信息
            /// </summary>
            /// <param name="err"></param>
            public void ShowError(string err)
            {
                //  System.Web..Current.Response.Write(Script(err, ""));
            }
            /// <summary>
            /// 显示信息
            /// </summary>
            /// <param name="err"></param>
            public void ShowMessage(string mes, string loc)
            {
                // System.Web.HttpContext.Current.Response.Write(Script(mes, loc));
            }
            /// <summary>
            /// javascript脚本
            /// </summary>
            /// <param name="mess"></param>
            /// <param name="loc"></param>
            /// <returns></returns>
            public string Script(string mess, string loc)
            {
                StringBuilder sb = new StringBuilder();
                sb.Append("<script language='javascript'>");
                sb.Append("alert('");
                sb.Append(mess);
                sb.Append("');");
                sb.Append(loc);
                sb.Append("</script>");
                return sb.ToString();

            }
            /// <summary>
            /// 弹出错误的信息
            /// </summary>
            /// <param name="err"></param>
            public static void ShowErrorstatic(string err)
            {
                // System.Web.HttpContext.Current.Response.Write(DbAccess.Scriptstatic(err, ""));
            }
            /// <summary>
            /// 显示信息
            /// </summary>
            /// <param name="err"></param>
            public static void ShowMessagestatic(string mes, string loc)
            {
                //System.Web.HttpContext.Current.Response.Write(DbAccess.Scriptstatic(mes, loc));
            }
            //<summary>
            //javascript脚本
            //</summary>
            //<param name="mess"></param>
            //<param name="loc"></param>
            //<returns></returns>
            public static string Scriptstatic(string mess, string loc)
            {
                StringBuilder sb = new StringBuilder();
                sb.Append("<script language='javascript'>");
                sb.Append("alert('");
                sb.Append(mess);
                sb.Append("');");
                sb.Append(loc);
                sb.Append("</script>");
                return sb.ToString();

            }
        }
        public class SqlTranModel
        {
            private string _sql;
            public string Sql
            {
                set { this._sql = value; }
                get { return this._sql; }
            }
            private SqlParameter[] _pas;
            public SqlParameter[] Pas
            {
                set { this._pas = value; }
                get { return this._pas; }
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/bestsaler/p/1835589.html
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