ASP.NET MVC form post parameter - asp.net-mvc

Question

I have a form in MVC:
<% using (Html.BeginForm("Get", "Person"))
{ %>
<%= Html.TextBox("person_id")%>
<input type="submit" value="Get Person" />
<% } %>
This redirects me to Person/Get. Okay. The question:
How do I make this Form so it redirects me to Person/Get/{person_id}?
Edit:
<% using (Html.BeginForm("Get", "Person", new { id = ??? }))
{ %>
<%= Html.TextBox("person_id")%>
<input type="submit" value="Get Person" />
<% } %>
What do I write in ???

Answer 1

I think the most difficult way would be using a javascript clientside.
The more straightforward way is to retrieve it on the action Person/Get and from there return a RedirectResult pointing to Person/Get/{person_id}
[HttpPost]
public ActionResult Get(string person_id)
{
return RedirectToAction("Get", "Person", new { id = person_id });
}
[HttpGet]
public ActionResult Get(string id)
{
//Do your thing
}
The redirect is usually so fast that the user will never notice. He/she will arrive at /Person/Get/{person_id}

Answer 2

What you want to do is specify the route values as the third parameter on the BeginForm method.
<% using (Html.BeginForm("Get", "Person", **new { person_id = this.Model}**))
{ %>
<%= Html.TextBox("person_id")%>
<input type="submit" value="Get Person" />
<% } %>
Then your controller action would look something like this
public ActionResult Get(int person_id)
{
return View(person_id);
}