asp.Netフォルダの下のすべてのサブフォルダを遍歴しgridviewにバインドする方法

Helper app_Helper = new Helper(); 

DataSet ds = new DataSet(); 

DataTable dt = new DataTable(); 

protected void Page_Load(object sender, EventArgs e) 
{ 
gvwBind(); 
} 

#region   GridView 

/// 
 
///   GridView 
/// 
 
protected void gvwBind() 
{ 
INI.INIPath iniINIPath = new INI.INIPath(); 
INI.INIFile iniINIFile = new INI.INIFile(iniINIPath.getINIPath()); 

string FolderNames = app_Helper.GetAllFolder(Server.MapPath("../../APPDIR"));//  APPDIR            

string[] FolderName = new string[FolderNames.Split(',').Length - 1];//                 

FolderName = FolderNames.Split(',');//             

dt.Columns.Add("LKNAME", typeof(string)); 
dt.Columns.Add("qdjsjm", typeof(string)); 
dt.Columns.Add("qdipdz", typeof(string)); 

for (int i = 0; i < FolderName.Length - 1; i++) 
{ 
DataRow row = dt.NewRow(); 

FolderName[i] = FolderName[i].Substring(FolderName[i].LastIndexOf('\\') + 1);//       

row["LKNAME"] = FolderName[i];//  LKNAME      

if (!iniINIFile.IniReadValue("dzjclkzp", FolderName[i]).Equals(""))//                key 
{ 
row["qdjsjm"] = iniINIFile.IniReadValue("dzjclkzp", FolderName[i]).Split(',')[0];// qdjsjm     
row["qdipdz"] = iniINIFile.IniReadValue("dzjclkzp", FolderName[i]).Split(',')[1];// qdipdz     
} 

dt.Rows.Add(row); 
} 

gvwGKWH.DataSource = dt;//      
gvwGKWH.DataBind(); 
} 

#endregion   GridView