DataGrid view

[Susie]

When data presented through datagrid as follows:

Col1 Col2
EditButton1
EditButton2
EditButton3
EditButton5
..
..
EditButton100

My problems are as follows:
1.After 40 records,Users have to scroll down to view the
records at the bottom.
2.I have an edit button created as above for each row.
When I click on the EditButton100 in order to show update
button, the page will be refreshed and represented with
the first 40 records.


How can I set properties to let the page stay at where the
user clicked?

Thank you.