Bll/BCompanySort.cs

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

namespace Bll
{
   public class BCompanySort
    {
       DCompanySort idc = new DCompanySort();
       public DataTable GetSortTree(int Sortid, bool returnimg, ref int iCanLayer)
       {
           DataTable sourcedt = idc.GetList();
           DataTable tardt = sourcedt.Clone();
           GetSortTree2(sourcedt, tardt, Sortid, returnimg, 0,ref iCanLayer);
           return tardt;
       }
       private void GetSortTree2(DataTable sourcedt, DataTable tardt, int Sortid, bool returnimg, int dep, ref int iCanLayer)
       {
           if (dep < iCanLayer || iCanLayer == 0)
           {
               DataView dv = sourcedt.DefaultView;
               dv.RowFilter = " NS_ParentId="+Sortid.ToString();
               foreach (DataRowView drv in dv)
               {
                   StringBuilder strapp = new StringBuilder();
                   if (returnimg)
                   {
                       for (int i = 0; i < dep; i++)
                       {
                           strapp.Append("<img src='../images/kb.gif' />");
                       }
                       if (dep != 0)
                       {
                           strapp.Append("<img src='../images/plus1.gif' />");
                       }
                   }
                   else
                   {
                       for (int i = 0; i < dep-1; i++)
                       {
                           strapp.Append("┃");
                       }
                       if (dep != 0)
                       {
                           strapp.Append("┣");
                       }
                   }
                   drv["NS_Name"] = strapp.ToString() + drv["NS_Name"].ToString();
                   drv["NS_Dep"] = dep;
                   tardt.ImportRow(drv.Row);
                   GetSortTree2(sourcedt, tardt, int.Parse(drv["NS_Id"].ToString()), returnimg, dep + 1, ref iCanLayer);
               }
           }
       }
       public string Del(int NS_Id)
       {