public IActionResult Update(int id, [FromBody] Bill model)
 {
     if (id > 0 && model != null)
     {
         _dbContext.Update(model);
         _dbContext.SaveChanges();
         TempData["success"] = $"Purchase Invoice No:{model.No} updated successfully";
         return(Json(model.Id));
     }
     return(BadRequest(ModelState));
 }
 public void Update <T>(T entity)
 {
     Context.Update(entity);
 }