Update Folder All file name in C#

  1. DirectoryInfo d = new DirectoryInfo(Server.MapPath("~/RUpload/"));  
  2.        FileInfo[] infos = d.GetFiles();  
  3.        string extension;  
  4.   
  5.        foreach (FileInfo f in infos)  
  6.        {  
  7.            try  
  8.            {  
  9.                extension = Path.GetExtension(f.FullName);  
  10.                String[] strf = f.FullName.Split('\\');  
  11.                objBLLM_EntranceDetails.Sptype = 2;  
  12.                //objBLLM_EntranceDetails.MED_Document = strf[strf.Length - 1].Replace(extension, "");  
  13.                objBLLM_EntranceDetails.MED_Document = strf[strf.Length - 1];  
  14.                DataSet objds = objBLLM_EntranceDetails.ExecuteDataset(objBLLM_EntranceDetails);  
  15.                if (objds.Tables[0].Rows.Count > 0)  
  16.                {  
  17.                    try  
  18.                    {  
  19.                        File.Move(f.FullName, f.FullName.ToString().Replace(objds.Tables[0].Rows[0]["CSign"].ToString(),objds.Tables[0].Rows[0]["FromNo"].ToString() + extension));  
  20.                    }  
  21.                    catch (Exception)  
  22.                    {  
  23.   
  24.                    }  
  25.   
  26.   
  27.                }  
  28.            }  
  29.            catch (Exception)  
  30.            {  
  31.   
  32.   
  33.            }  
  34.        }