private void Search()
 {
     try
     {
         NpgsqlDataReader dataReader = PgSql.GetContactReport();
         dataGridView.RowCount    = 0;
         dataGridView.ColumnCount = dataReader.FieldCount;
         int row = 0;
         while (dataReader.Read())
         {
             int cell = 0;
             dataGridView.RowCount++;
             for (int i = 0; i < dataReader.FieldCount; i++)
             {
                 dataGridView.Columns[i].HeaderText       = dataReader.GetName(i);
                 dataGridView.Rows[row].Cells[cell].Value = dataReader[i].ToString();
                 cell++;
             }
             dataGridView.Rows[row].HeaderCell.Value = (row + 1).ToString();
             row++;
         }
         dataReader.Close();
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }