how i upload single image in asp.net

http://www.c-sharpcorner.com/UploadFile/0c1bb2/uploading-images-to-database-using-Asp-Net-C-Sharp/
http://www.c-sharpcorner.com/UploadFile/225bcd/how-to-upload-images-to-databases-or-how-to-store-images-to-database/
http://www.c-sharpcorner.com/uploadfile/mahakgupta/upload-an-image-and-an-audio-file-using-C-Sharp/default.aspx