CloverYang CloverYang - 1 year ago 137
ASP.NET (C#) Question

Is there any way to set ActionName in QueryString in ASP.NET MVC 5?

We all know url in ASP.NET MVC always like

I'd like to know is there a way to put action name in query string just like
(notice action=index in query string), and make ASP.NET MVC route the url to the corresponding controller and action. The name of the query name can be
or something else.

--- update 28th Sep ---

The actual situation is I have a form, inside the form is a table with radio button each column and some button (create, edit, delete etc.) above the table. These buttons go to different action in same controller.

As a result of search, I've got some solutions:

  1. handle onsubmit via JavaScript and change the action property of form. Answer link

  2. write a "route" method in controller to re-route the request. Answer link ( I think this is not a graceful solution )

  3. write a custom attribute let ASP.NET MVC route to corresponding action base on query. This anwser and this answer ( Very close to my original idea, I am currently using this solution )

Answer Source

I'm the questioner and just several hours after I update the question, I finally figure out the solution. That is write a custom Route.

public class QueryActionRoute : Route
    public QueryActionRoute(string url, object defaults) : base(url, new RouteValueDictionary(defaults), new MvcRouteHandler()) { }

    public override RouteData GetRouteData(HttpContextBase httpContext)
        var routeData = base.GetRouteData(httpContext);
        var action = httpContext.Request["action"];
        if (routeData != null)
            if (!string.IsNullOrEmpty(action))
                routeData.Values["action"] = action;
            routeData = new RouteData()
                Values = { {"action", "Index"} }
        return routeData;

and replace the default route

public class RouteConfig
    public static void RegisterRoutes(RouteCollection routes)
            new QueryActionRoute(
                new { controller = "Home", action = "Index", id = UrlParameter.Optional }));

after that you can access an action via can emit action name if the action is "index") like before

I's really helpful when you need to specify different buttons to go different actions in form. You can make it in this way:

<form action="@Url.Action("Index")">
    <button name="action" value="Create">Create</button>
    <button name="action" value="Details">Detail</button>
    <button name="action" value="Edit">Edit</button>
    <button name="action" value="Delete">Delete</button>
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