Using ASP MVC, I have set up a webpage for localhost/Dinner/100 to show the dinner details for dinner with ID = 100.
On the page, there is a dropdown that shows Dinner 1, Dinner 2, etc. The user should select the dinner of interest (Dinner 2, ID = 102) off the form and press submit. The page should refresh and show the url: localhost/Dinner/102, and show the details of dinner 2.
My code is working except for the url. During this, my url shows localhost/Dinner/100 even though it is correctly displaying the details of Dinner 2 (ID = 102).
My controller method is pretty simple:
public ActionResult Index(string id)
{
int Id = 0;
if (!IsValidFacilityId(id) || !int.TryParse(id, out Id))
{
return Redirect("/");
}
return View(CreateViewModel(Id));
}
can you help me figure out how to get this all working?
p.s. I did create a custom route for the method:
routes.MapRoute(
"DinnerDefault", // Route name
"Dinner/{id}", 开发者_C百科 // URL with parameters
new { controller = "Dinner", action = "Index", id = "" } // Parameter defaults
);
If you are using ASP.NET MVC HtmlHelper BeginForm() method, keep in mind that by dafult it uses the POST method.
I Think the easiest way is to do this via RedirectToAction result.
View:
<body>
<% Html.BeginForm("Select", "Home"); %>
<select id="dinners" name="dinners">
<option value="100">dinner 1</option>
<option value="101">dinner 2</option>
<option value="102">dinner 3</option>
</select>
<button type="submit"></button>
<% Html.EndForm(); %>
</body>
Controller:
public ActionResult Index(string id)
{
int Id = 0;
if (!IsValidFacilityId(id) || !int.TryParse(id, out Id))
{
return Redirect("/");
}
return View(CreateViewModel(Id));
}
public ActionResult Select(string dinners)
{
return RedirectToAction("Index", "Home", new {id = dinners});
}
Input fields in forms can only change the querystring portion of a URL and only if you use 'get' as the method.
The dinner id is probably being passed as a 'post' value. This will be hidden in the page's http headers, but will over right the values in the visible url.
You can change the url a form posts to in Html.BeginForm, but not dynamically based on form input, unless you use javascript to change the form's action.
An easier thing to do might be to return a RedirectToAction result from your controller:
return RedirectToAction("Index", new { id = 102 ]);
But you'd need to make sure you only did this on post requests.
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