/// <summary>  /// DataTable行轉列  /// </summary>  /// <param name="dtable">需要轉換的表</param>  /// <param name="head">轉換表表頭對應舊表字段（小寫）</param>  /// <returns></returns>  public static DataTable DataTableRowtoCon(DataTable dtable, string head)  {   DataTable dt = new DataTable();   dt.Columns.Add("NumberID");   for (int i = 0; i < dtable.Rows.Count; i++)   {//設置表頭    dt.Columns.Add(dtable.Rows[i][head].ToString());   }   for (int k = 0; k < dtable.Columns.Count; k++)   {    string temcol = dtable.Columns[k].ToString();    if (dtable.Columns[k].ToString().ToLower() != head)//過濾掉設置表頭的列    {     DataRow new_dr = dt.NewRow();     new_dr[0] = dtable.Columns[k].ToString();     for (int j = 0; j < dtable.Rows.Count; j++)     {      string temp = dtable.Rows[j][k].ToString();      new_dr[j + 1] = (Object)temp;     }     dt.Rows.Add(new_dr);    }   }   return dt;  }