C# DataTable 行转列

   #region 根据datatable获得列名
         /// <summary>
         /// 根据datatable获得列名
         /// </summary>
         /// <param name="dt">表对象</param>
         /// <returns>返回结果的数据列数组</returns>
         public static string[] GetColumnsByDataTable(DataTable dt)
         {
             string[] strColumns = null;

             if (dt.Columns.Count > )
             {
                 int columnNum = ;
                 columnNum = dt.Columns.Count;
                 strColumns = new string[columnNum];
                 for (int i = ; i < dt.Columns.Count; i++)
                 {
                     strColumns[i] = dt.Columns[i].ColumnName;
                 }
             }
             return strColumns;
         }
         #endregion

  for (int i = ; i < name.Length; i++)
 {
      dtColumn.Rows.Add(new string[] { "", name[i], "" });
 }

搞定！