Dal/DCompanySort.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using Model;

namespace Dal
{
   public class DCompanySort
    {
        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataTable GetList()
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select NS_Id,NS_Name,NS_Model,NS_ParentId,NS_Order,NS_Stop,NS_Address,NS_Url,NS_Date,NS_Title,NS_Keywords,NS_Description,NS_Pic,NS_Pic2,NS_Memo,NS_Dep ");
            strSql.Append(" FROM CompanySort ");
            strSql.Append(" Order By NS_Order Asc");

            return OLEDBHelper.FileDataTable(strSql.ToString(), null, CommandType.Text);
        }

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return int.Parse(OLEDBHelper.ExeScalar("select Max(NS_Id) from CompanySort",null,CommandType.Text));
        }

        /// <summary>
        /// 得到最大Order
        /// </summary>
        public int GetMaxOrder()
        {
            return int.Parse(OLEDBHelper.ExeScalar("select Max(NS_Order) from CompanySort", null, CommandType.Text));
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Del(int NS_Id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from CompanySort ");
            strSql.Append(" where NS_Id=@NS_Id ");
            SqlParameter[] parameters = {
					new SqlParameter("@NS_Id", SqlDbType.Int,4)};
            parameters[0].Value = NS_Id;

            int rows = OLEDBHelper.ExeNonQuery(strSql.ToString(), parameters, CommandType.Text);
            if (rows > 0)
            {
                return true;
            }
            else