How to upload a file without refreshing the whole page?

[Darklord_Guy]

I want to upload image in server folder but while uploading I don't want to refresh the whole aspx page when I click on the upload button.I tried using an \[code\]UpdatePanel\[/code\] with \[code\]AsyncPostBackTrigger\[/code\] but it did not work, and I also tried \[code\]PostBackTrigger\[/code\] but the page was refreshed.