select n rows from a datatable csharp

In framework 3.5, dt.Rows.Cast<System.Data.DataRow>().Take(n) or in earlier you can use

 public DataTable  SelectTopDataRow(DataTable dt, int count)
    {
         DataTable dtn = dt.Clone();
         for (int i = 0; i < count; i++)
         {
             dtn.ImportRow(dt.Rows[i]);
         }

         return dtn;
    }
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