How should I to release the pop-up page object on memory when I close the
page?
I have main page, which will open a popup webpage when a button clicked. In
the first opened pop-up page, it is no problem. After closed pop-up page,
then second click button, it don't run over the Page_Load event of the
pop-up page. I think it have page object storage on memory. How should I
to release the page object when I closed pop-up page.