Grid multi checkbox

Question

Hello,

I am binding Gridview with suppose 1000 records. I need to add checkbox infront of each row and user will check any checkbox they want and There should be common APPROVE button. On clicking on it, it should update status of CHECKED rows only

Test

Choose	Reference Id	Status	Action
checkbox1	12345	Y	APPROVE
checkbox2	78945	Y	APPROVE
checkbox3	74185	Y	APPROVE
checkbox4	85296	Y	APPROVE

APPROVE

User can either update single record or multi-rows record (Checked row)

Thanks in Advance !