Is there a way I can debug a route in ASP. MVC5? [duplicate]

Answer 1

I know it is late for the OP but for anyone else trying to debug 404 errors I've found a way to intercept the route result and see why it is failing to find the resource.

In Global.asax.cs override Init like this:

    public override void Init()
    {
        base.Init();
        this.AcquireRequestState += showRouteValues;
    }

    protected void showRouteValues(object sender, EventArgs e)
    {
        var context = HttpContext.Current;
        if (context == null)
            return;
        var routeData = RouteTable.Routes.GetRouteData(new HttpContextWrapper(context));
    }

The routeData variable will hold the route info as it is being interpreted. I've tested this on MVC5.

I originally bumped into this method in another answer by Paul Evans, this is the link (thanks to @porcus for finding it): stackoverflow.com/a/25466524

Answer 2

Take a look at Glimpse. One of the modules that it comes with is a Routes module which will allow you to see details about the routes that were checked, values that were passed in and which ones matched (if any).