Bellowed code enable you to browse file from any location on ur machine,
save it in ur application folder, ur image control will display
respected image.
e.g. pic.jpg
The simpliest variant (assume that upload control named as MyFileUpload1 and image named as Image1):
MyFileUpload1.PostedFile.SaveAs(Server.MapPath("~/" + MyFileUpload1.PostedFile.FileName));
Image1.ImageUrl = "~/" + MyFileUpload1.PostedFile.FileName;