WELOA.DAL/Wage/gz_infoDAO.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using WELOA.Model;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;
using LSDAL_SQL;

namespace GZDAL_SQL
{
    public class gz_infoDAO
    {
        
        private DateSetInformation dsinfo = new DateSetInformation();
        private ls_exception exlog = new ls_exception();
        private Polytechnic trinfo = new Polytechnic();

        
        public DateSetInformation selectgzinfo()
        {
            this.dsinfo.nException = -1;
            using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["lsstring"].ConnectionString))
            {
                SqlDataAdapter adapter = new SqlDataAdapter("select * from gz_info", connection);
                DataSet dataSet = new DataSet();
                try
                {
                    adapter.Fill(dataSet);
                }
                catch (Exception exception)
                {
                    this.exlog.insexception("gz_infoDAO.cs selectgzinfo", exception.Message);
                    this.dsinfo.nException = 1;
                    return this.dsinfo;
                }
                this.dsinfo.ds = dataSet;
            }
            return this.dsinfo;
        }

        public Polytechnic updategzinfo(int nViewNum)
        {
            this.trinfo.nException = -1;
            using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["lsstring"].ConnectionString))
            {
                SqlCommand command = connection.CreateCommand();
                command.CommandText = "update gz_info set gzcolnum = @nViewNum";
                command.Parameters.AddWithValue("@nViewNum", nViewNum);
                try
                {
                    if (connection.State == ConnectionState.Closed)
                    {
                        connection.Open();
                    }
                    this.trinfo.rowsnum = command.ExecuteNonQuery();
                }
                catch (Exception exception)
                {