Routing depending on optional action value in url - asp.net-mvc

Being rather new to ASP.MVC I'm looking for a solution to the following routing problem.
I want these Url's to lead to the shown pages:
/Member/123/A+Strange+Username -> page with members details
/Member/123 -> as above
/Member/Connections/123 -> page with list of members connections
/Member/Connections/123/A+Strange+Username -> as above
/Member/Comments/123 -> page with list of members comments
/Member/Comments/123/A+Strange+Username -> as above
The username should be ignored but will be appended to links to help search engines.
I have tried with the following routes:
routes.MapRoute("MemberPage", "Member/{id}/{*name}", new { controller = "Member", action = "Details", id = "" });
routes.MapRoute("MemberAction", "Member/{action}/{id}/{*name}", new { controller = "Member", action = "Details", id = "" });
But it seems it always defaults to the first route, and then gets an error since "Connections" or "Comments" is invalid id's for the Details controller.
Is there a way to switch route depending on the type of the id-value, or another way to solve this?

It might help if you add a route constraint to the {id} both routes.
routes.MapRoute("MemberPage", "Member/{id}/{*name}",
new { controller = "Member", action = "Details", id = "" },
new { id=#"\d+" });
routes.MapRoute("MemberAction", "Member/{action}/{id}/{*name}",
new { controller = "Member", action = "Details", id = "" },
new { id=#"\d+" });
This way, it won't try to map "Comments" to {id} in the first route and will fall through to the second one which should work fine with that URL.

Related

Create proper link from MVC5 Ajax.ActionLink

I have an mvc view that contains a table of data. I want to include a 'Remove' button in there so users can delete records. I'm having trouble generating the proper link to go to my Delete action. In order to delete i need two values from the table, not just an id.
<td>
#Ajax.ActionLink("Delete",
"DeleteWorkItem",
"Project/Work",
new { hId = #w.ProjectId, workId = #w.WorkId},
new AjaxOptions()
{
AllowCache = false,
HttpMethod = "DELETE",
Confirm = "Are you sure you want to delete this record?"
})
</td>
is what i have so far but when the link is clicked it creates a Get request to a url and appends the two parameters in the query string. How can i get those parameter values in the url instead of the query string. Also, I want to call the http delete method but no matter what i put in that options value i get a get
My WorkController
[HttpDelete]
public ActionResult DeleteWorkItem(int hId, int workId)
{
this.brWorkManager.Delete(forhealthId, workId);
return RedirectToAction("Details");
}
my route:
routes.MapRoute(
"WorkItemDelete",
"FHProject/Work/DeleteWorkItem",
new { controller = "Work", action = "DeleteWorkItem" },
new { httpMethod = new HttpMethodConstraint("DELETE") }
);

MVC Attribute routing with Url.Action not resolving route

I cannot get #Url.Action to resolve to the url I am expecting based on the attribute route I have applied:
My action (SearchController but with [RoutePrefix("add")])
[Route("{searchTerm}/page/{page?}", Name = "NamedSearch")]
[Route("~/add")]
public ActionResult Index(string searchTerm = "", int page = 1)
{
...
}
Call to Url.Action
#Url.Action("Index", new { controller = "Search", searchTerm = "replaceMe", page = 1 })
This results in a url of
/add?searchTerm=replaceMe&page=1
I would expect
/add/replaceMe/page/1
If I type the url manually then it resolves to the correct action with the correct parameters. Why doesn't #Url.Action resolve the correct url?
Since you have a name for your pretty route definition, you may use the RouteUrl method.
#Url.RouteUrl("NamedSearch", new { searchTerm = "replaceMe", page = 1})
And since you need add in the url, you should update your route definition to include that in the url pattern.
[Route("~/add")]
[Route("~/add/{searchTerm?}/page/{page?}", Name = "NamedSearch")]
public ActionResult Index(string searchTerm = "", int page = 1)
{
// to do : return something
}
Routes are order sensitive. However, attributes are not. In fact, when using 2 Route attributes on a single action like this you may find that it works on some compiles and not on others because Reflection does not guarantee an order when analyzing custom attributes.
To ensure your routes are entered into the route table in the correct order, you need to add the Order property to each attribute.
[Route("{searchTerm}/page/{page?}", Name = "NamedSearch", Order = 1)]
[Route("~/add", Order = 2)]
public ActionResult Index(string searchTerm = "", int page = 1)
{
return View();
}
After you fix the ordering problem, the URL resolves the way you expect.
#Url.Action("Index", new { controller = "Search", searchTerm = "replaceMe", page = 1 })
// Returns "/add/replaceMe/page/1"
To return full URL use this
#Url.Action("Index", new { controller = "Search", searchTerm = "replaceMe", page = 1}, protocol: Request.Url.Scheme)
// Returns "http://yourdomain.com/add/replaceMe/page/1"
Hope this helps someone.

Using HtmlHelper.BeginForm to match a complicated route

I have a complicated route that I would like to match with an HtmlHelper.BeginForm method. I've read quite a few articles and answers on using route value dictionaries and object initializers and html attributes. But they all fall short of what I want to do...
Here is the route I want to match:
// Attempt to consolidate all Profile controller actions into one route
routes.MapRoute(
"Profile",
"{adminUserCode}/{controller}s/{customerId}/{action}/{profileId}",
new { adminUserCode = UrlParameter.Optional, controller = "Profile"},
new { adminUserCode = #"\d+", customerId = #"\d+", profileId = #"\d+" }
);
An example url for the controller & action I want to match with this would be:
http://mysite.com/123/Profiles/456/UpdatePhoneNumber/789
With the actual phone number being in the POST body
And here is the closest syntax I've come to getting right:
#using (Html.BeginForm(
"UpdatePhoneNumber",
"Profile",
new {
customerId = Model.LeadProfile.CustomerId,
profileId = Model.CustomerLeadProfileId
}))
{
<!-- the form -->
}
But this puts the parameters in the object as query string parameters, like this:
<form method="post"
action="/mvc/123/Profiles/UpdatePhoneNumber?customerId=78293&profileId=1604750">
I just tried this syntax on a whim, but it output the same thing as the other overload
#using (Html.BeginForm(new
{
controller = "Profile",
customerId = Model.LeadProfile.CustomerId,
action = "UpdatePhoneNumber",
profileId = Model.CustomerLeadProfileId
}))
I know I can just fall back on raw HTML here, but there seems like there should be a way to get the silly HtmlHelper to match more than the most basic of routes.
If you want to use complicated routes in your form you need to use the BeginRouteForm Method
#using (Html.BeginRouteForm("Profile", new
{
controller = "Profile",
customerId = Model.LeadProfile.CustomerId,
action = "UpdatePhoneNumber",
profileId = Model.CustomerLeadProfileId
}))

path_prefix for asp.net mvc routes

I read this article about how you can prefix routes in ruby on rails. I want to be able to do the same thing with asp.net mvc
So I want to be able to define a route like :
/photographers/1/photos/2 //photo 2 of photographer with id 1
/photographers/1/photos //all of photographer with id 1
Any tips ?
EDIT:
"photographers/{id}/photos/{photoID}" - seems to do the job quite ok, BUT how can I support
RedirectToAction<PhotosController>(x => x.Add());
I would like to redirect to : /photographers/1/photos/add
Define your route like this:
routes.MapRoute(
"Photographers",
"photographers/{id}/photos/{photoID}",
new { controller = "Photographers", action = "Photo", photoID = null });
Then define your controller action like this:
public ActionResult Photo(int id, int? photoID)
{
// If photoID is not null, show just that photo.
// Otherwise, show all photographs.
}
You could use regex routing or use wildcards in your routing table so that the {id*} matches the /1/photos/2 for the photographers default controller, parse the string, and redirect to an appropriate action.
Also take a look at this post about nested resources.
RouteTable.Routes.Add(
new Route { Url = "events/[eventId]/tickets/[action]/[id]",
Defaults = new { controller = "Tickets",
action = "List", id = (string)null },
RouteHandler = typeof(MvcRouteHandler) });

Having issues with MVC Routing

I'm trying to implement routing such as the following:
posts/535434/This-is-a-post-title
posts/tagged/tags+here
// Matches {controller}/{action}/{id} - Default
// Displays all posts with the specified tags
// uses PostsController : ActionTagged(string tags)
posts?pageSize=50&pageIndex=4
// Matches {controller}/{action}/{id} - Default
// Displays all posts
// uses PostsController : Index(int? pageSize, int? pageIndex)
Here's the problem I want to do this:
posts/39423/this-is-a-post-title-here
// Typically this is implemented using an action like 'Details'
// and would normally look like : posts/details/5
I can't seem to get the routing working right. I tried something like this:
{controller}/{id}/{description}
and set the default action to be "Display" which works, but then won't allow me to navigate to other named actions like "Tagged".
What am I missing?
Thanks!
Two things:
First, you should always order your routes in decreasing specificity (e.g. most specific case first, least specific case last) so that routes will "fall through", if one doesn't match it will try the next.
So we want to define {controller}/{postid}/... (must be a postid) before we define {controller}/{action}/... (could be anything else)
Next, we want to be able to specify that if the provided value for postid does not look like a Post ID, the route should fail and fall through to the next one. We can do this by creating an IRouteConstraint class:
public class PostIDConstraint : IRouteConstraint
{
public bool Match(HttpContextBase httpContext,
Route route,
string parameterName,
RouteValueDictionary values,
RouteDirection routeDirection)
{
//if input looks like a post id, return true.
//otherwise, false
}
}
We can add it to the route definition like so:
routes.MapRoute(
"Default",
"{controller}/{postid}/{description}",
new { controller = "Posts", action = "Display", id = 0 },
new { postid = new PostIDConstraint() }
);
I'm not 100% I understand your question, but it sounds like you can just define a couple different routes.
routes.MapRoute("PostId", "posts/{id}/{title}",
new { Controller = "Posts", Action = "DisplayPost", id = 0, title = "" },
new { id = #"\d+" });
routes.MapRoute("TaggedPosts", "posts/tagged/{tags}",
new { Controller = "Posts", Action = "DisplayTagged", tags = "" });
routes.MapRoute("Default", "posts",
new { Controller = "Posts", Action = "Index" });
You can use regular expressions to validate parameters like I used for id in the first route, or if you want some better validation do something like Rex M posted. The querystring parameters pageSize and pageIndex don't need to be included in your route; they will just be passed in to your Index method as long as the parameter names match.
The part of the url that's the "description" actually isn't used.
For example, this post is 519222 and I can still get to it using the url: Having issues with MVC Routing

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