Search value with datatable select in specific row range

Question

Hi, I am trying to get value from specific row range.

 

This is the code i tried but not sure where should i use the variable rows.

var rows = dt.AsEnumerable().Skip(0).Take(15);
string value = "CB123";
DataRow[] result = dt.Select("BOOKCODE like '%" + value + "%'");
//foreach (var col in rows)
//{
if (result.Count() > 0)
{
    MessageBox.Show("BookCode Not Found");
    //Application.Exit();
}
//}