How to Clear model after submit the data in database in MVC3

Question

I am submitting some data in database and after submit I want to show same page. But I am viewing the page the textbox value is not empty.

ModelState.Clear();

I have used to clear the textbox.

But still the textbox value is remain. please suggest me to clear the model after submit in mvc3.

public ActionResult AddNewCategory(CategoryViewModel model) {
  if (ModelState.IsValid) {
    int result = 0;
    var categoryEntity = new Category {
      CategoryName = model.CategoryName, CategorySlug = model.CategorySlug
    };
    result = Convert.ToInt32(_categoryRepository.AddNewCategory(categoryEntity));
    if (result > 0) {
      ModelState.Clear();
    }
  }
  return View(model);
}

Answer 1

You're getting the same model, because you're passing it to the view View(model). You have couple options here: either pass an empty model, or redirect to the get variant of your post action.

1)

   if (ModelState.IsValid) 
   { 
      //saving
      if (result > 0) 
      {
         ModelState.Clear();
         return View(new CategoryViewModel()); 
      }          
   } 

2)

   if (ModelState.IsValid) 
   { 
      //saving
       if (result > 0) 
       {   
           return RedirectToAction("AddNewCategory");
       }
   }

PS: I strongly advice to use the second approach as you might want to make other DB calls to construct your model and you won't want to do this in multiple places.