Action is not receiving the value of the parameter

Question

In the code below I am trying to pass a parameter to an Action. The action is being called and the value of the parameter is also being assigned to Url. But Action takes Null, not the value of the parameter.

@using (Html.BeginForm("Buscar", "Terapeutas", FormMethod.Post, htmlAttributes: new { @id = "form1", @name = "form1" }))
            {
                @Html.ValidationSummary(true)

                foreach (var item in Model.Terapeutas)
                {
                    <img src="/Terapeutas/ShowFoto/@item.ID_TERAPEUTA" class="img-circle" alt="Foto Terapeuta" width="120" height="120" />
                }
            }

Answer 1

Your problem is that you do not have the route configuration in your file RouteConfig.cs, so you can not pass the URL this way. To solve your problem, you can pass the parameter by querystring or configure your route.

With queryString just change your src for that reason:

<img src="/Terapeutas/[email protected]_TERAPEUTA" class="img-circle" alt="Foto Terapeuta" width="120" height="120" />

Note that now your url will look like this: www.domain.com/therapists/showfoto? id=2.

To set your route and continue using the way it is, just add this to your file RouteConfig.cs.

routes.MapRoute(
            name: "Fotos",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Terapeutas", action = "ShowFoto", id = UrlParameter.Optional }
        );

This way you will be able to access using the form you are.