Hey Shengwen Cui,
You can go to property of DG2 and select Hide - No for all field or another solution is styling that you add move to separate css class and add it do DG2. Why all your DG2 have eye, you probably change source styling code of DG2
This button marked red. I'd like to hide it.
Hi Shengwen Cui
To hide that button for only current page use display: none; in button style like this
in your datagrid2 for that page and it hide the icon for that page.
I hope this will help you:)