How to loop through the whole gridview rows including the rows in other pages?

[stephendelhi]

I know how to loop through the grid view rows :\[code\]foreach (GridViewRow oItem in GridView1.Rows){ //}\[/code\]but what i want to do is looping through the whole gridview including the rows in the other pages if i enable the \[code\]paging\[/code\] .how to do this ?