i want to upload a file and file name display in data base also

string filepath = FileUpload1.PostedFile.FileName;
            string filename = Path.GetFileName(filepath);
            string ext = Path.GetExtension(filename);
            string filename1 = Path.GetFileName(FileUpload1.PostedFile.FileName);
            string dir = @"D:\Retail\";  // folder locations
            if (!Directory.Exists(dir))
            {
                Directory.CreateDirectory(dir);
                FileUpload1.SaveAs(dir + filename1);
            }
            else
            {
                FileUpload1.SaveAs(dir + filename1);
            }
          // Now you can add the inserted columns data here..