C# DataTable转化为自定义DataTable

复制下就好了

 //dtcollectingUsersShow 自定义的DataTable
 DataTable dataTableUser = ""  // 赋好值的DataTable
                for (int dtUserRowcoun = 1; dtUserRowcoun < dataTableUser.Rows.Count; dtUserRowcoun++)
                {
                    DataRow dydr = dtcollectingUsersShow.NewRow();
                    dydr.ItemArray = dataTableUser.Rows[dtUserRowcoun].ItemArray;
                    dtcollectingUsersShow.Rows.Add(dydr);  
                }