How can I change this Get method so that instead of looking for the ID, I look for another parameter of the model.
[ResponseType(typeof(LecturaCummins))]
public IHttpActionResult GetLecturaCummins(int id)
{
LecturaCummins lecturaCummins = db.LecturaCummins.Find(id);
if (lecturaCummins == null)
{
return NotFound();
}
return Ok(lecturaCummins);
}
It simply changes the type of parameter that it collects, example:
[HttpGet]
public IHttpActionResult GetLecturaCummins(string nombre)
{
var lecturaCummins = db.LecturaCummins.Where( p => p.Nombre == nombre));
if (!lecturaCummins.Any())
{
return HttpNotFound();
}
return Ok(lecturaCummins);
}
and if you notice I have modified the if since Where always returns a collection not null , if you want you can change Where by FirstOrDefault and leave your if as is. This whole example works well when you pass the parameters using an example form:
@using (Html.BeginForm(
"GetLecturaCummins", "Lectura", FormMethod.Get))
{
<input type="text" name="Nombre"/>
<input type="submit" value="buscar"/>
}
Your problem may be that you want to pass the name value, (which is a string) as a parameter in an asp path. example http://localhost:port/LecturaCummins/GetLecturaCummins/nombre_del_atriburo . If this is the case, the value expected by your method would arrive null, this happens because your project is configured to receive routes of type Controller / Action / int: Id, in order to receive a string in your route, just go to RouteConfig.cs and add:
routes.MapMvcAttributeRoutes();
would fit you like this:
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapMvcAttributeRoutes();
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
}
Already above your method add the following to allow you to receive string:
[Route("NombredetuController/GetLecturaCummins/{nombre:alpha}")]
[HttpGet]
public IHttpActionResult GetLecturaCummins(string nombre){
....
}
I hope it helps you