Redirect with POST parameters in MVC 4 for Payment Gateway Integration

Question

I am trying to do a payment gateway integration using mvc4 in razor. In that i need to call a page with prefilled post form.

Using the below method, I am forming th

Answer 1

I suggest you to create an Action with form which receives a Model in parameters. Then, just pass model when you redirect to this Action

[HttpPost]
public ActionResult OrderSummary()
{
    return RedirectToAction("OrderForm", new { HashData = hashData });
}

[HttpGet]
public ViewResult OrderForm(string hashData)
{
    OrderFormModel model = new OrderFormModel();
    model.HashData = hashData;
    return View(model);
}

[HttpPost]
public ActionResult OrderForm(OrderFormModel model)
{
    if(ModelState.IsValid)
    {
        // do processing
    }
}