delete image in datagrid

Question

Hi!
    i am using datagrid to display images, when i click delete link button (this delete link button code is write in delete command)
that row is deleted. but my doubt is image is also deleted in that saved location.
means that datagrid images are saved in my projects images folder. when i click delete button that image is also deleted in images folder. how can i do it. please give an idea, or give a code to do this.
Thanks.