string fileName = Path.GetFileName(entity.file.FileName).Substring(0, entity.file.FileName.Length - 4);
string directory = Path.Combine(@"~C:UsersArturDocumentstesting" + fileName);
fileName = Path.GetFileName(entity.file.FileName);
Directory.CreateDirectory(HttpContext.Current.Server.MapPath(directory));
string path = Path.Combine(HttpContext.Current.Server.MapPath(directory), fileName);

entity.file.SaveAs(path);

string name = Path.GetFileNameWithoutExtension(fileName);
string myfile = name + "_" + tbl.Id + ext;

var path = Path.Combine(Server.MapPath("~/Img"), myfile)