To find n number of rows from datatable
Just write a small piece of code and get n
no. of rows from datatable.
Syntax
DataTable newTable=new DataTable();
newTable= oldTable.AsEnumerable().Take(10).CopyToDataTable();
Suppose you have 100 of rows in oldTable.
Using above line of code you will get 10 rows in newTable.
you can replace 10 with your number and
easily get no. of rows which you want.