maximum and minimum in a datatable..

dear all,
i have a datatable and following is how it look like ID      ENO    RID 1    0    0                   1    1    0 2    1    1 2    1    1                   1    2    0 2    2    1 2    2    2 2    2    2 how can i find out the following ? record count for eno = 1 maximum value for eno = 1 minimum value for eno = 1 Thanks Nick