[Remote] not working in grid?

[Joan Vilariño]

Hi... I have an ajax grid as follows :

@(Html.Telerik().Grid<TraspasoViewModel.TraspasoAlbaranesCandidatosVM>()
                .Name("GridCandidatos")
                .DataKeys(k => k.Add(o => o.IdCentroServicio))
                .DataBinding(db => db.Ajax().Select<TraspasoController>(o => o._obtenerGridCandidatos())
                                            .Update<TraspasoController>(o => o._updateGridCandidatos(0))
                                            .Delete<TraspasoController>(o => o._deleteGridCandidatos(0)))
                .Sortable()
                .Filterable()
                .Reorderable(cf => cf.Columns(true))
                .Resizable(cf => cf.Columns(true))
                .Scrollable(sc => sc.Height(450))
                .Pageable(pg => pg.PageSize(50))
                .Selectable()
                .Columns(cl =>
                {
                    cl.Command(cm =>
                    {
                        cm.Edit().ButtonType(GridButtonType.Image);
                        cm.Delete().ButtonType(GridButtonType.Image);
                    }).Width(80).Title("Acciones");
                    cl.Bound(o => o.Empresa).ReadOnly().Width(90);
                    cl.Bound(o => o.Tercero).ReadOnly().Width(90);
                    cl.Bound(o => o.NomLocal).ReadOnly().Width(250);
                    cl.Bound(o => o.NomTitular).ReadOnly().Width(250);
                    cl.Bound(o => o.Modelo).ReadOnly().Width(100);
                    cl.Bound(o => o.NumeroSerie).ReadOnly().Width(100);
                    cl.Bound(o => o.Propuesto).ReadOnly().Width(100).HtmlAttributes(new { style = "text-align:right" });
                    cl.Bound(o => o.Importe).HtmlAttributes(new { style = "text-align:right" });
                }))

With this ViewModel:

public class TraspasoAlbaranesCandidatosVM : EntidadVM
      {
          public long IdCentroServicio { get; set; }
          public string Codigo { get; set; }
          public string Nombre { get; set; }
          public long IdEmpresa { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_Empresa")]
          public string Empresa { get; set; }
          public string NomEmpresa { get; set; }
          public long IdLocal { get; set; }
          public string Local { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_NomLocal")]
          public string NomLocal { get; set; }
          public long IdTercero { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_Tercero")]
          public string Tercero { get; set; }
          public string NomTercero { get; set; }
          public long IdMaquina { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_Modelo")]
          public string Modelo { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_NumeroSerie")]
          public string NumeroSerie { get; set; }
          public long IdTitular { get; set; }
          public string Titular { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_NomTitular")]
          public string NomTitular { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_Importe")]
          [Remote("_comprobarImporte", "Traspaso", "Recaudacion", AdditionalFields = "Propuesto", ErrorMessageResourceType = typeof (TraspasoStrings), ErrorMessageResourceName = "TraspasoAlbaranesCandidatosVM_Importe_El_importe_no_puede_superar_la_cantidad_propuesta_")]
          public decimal Importe { get; set; }
          [Display(ResourceType = typeof(TraspasoStrings), Name = @"TraspasoAlbaranesCandidatosVM_Propuesto")]
          public decimal Propuesto { get; set; }
          public TraspasoAlbaranesCandidatosVM() : this(new TraspasoAlbaranesCandidatosGrid()) {}
          public TraspasoAlbaranesCandidatosVM(TraspasoAlbaranesCandidatosGrid entidad): base(entidad)
          {
              this.Propuesto = entidad.Importe;
          }
      }

And this action in my controller:

public ActionResult _comprobarImporte(decimal Importe, decimal Propuesto)
       {
           return Json((Propuesto < 0)
                           ? (Importe >= Propuesto)
                           : (Propuesto >= Importe), JsonRequestBehavior.AllowGet);
       }

As you can see, I'm defining a [Remote] validator for field "Importe" that will pass an AdditionalField called "Propuesto", both present at model and grid. The problem is that even when the controller's action is called for validation, "Propuesto" always comes as null.

If I define it as "decimal" at my action... I get a 500 server error, then I changed it for "string" and I saw that the problem is that "Propuesto" always comes as null.

Then checking the HTML at edit time, I saw that the .ReadOnly column for "Propuesto" is rendering its value as plain text, so I thought the problem was that I needed to make propuesto editable (not what I need but okay for testing purposes). So I removed the .ReadOnly attribute from "Propuesto"'s column, but the result is the same: "Propuesto" always comes null to the validation action.

I also tried to change the [Remote]'s HttpMethod to POST, and the result is the same... in fact, when I check "Request.Form" at my action, only "Importe" comes in the collection.

Can you fix that or teach me a workaround, please?

Cheers

[Rosen]

Hi Joan Vilariño,

I was able to observed similar to the described behavior. However, we have managed to address it and the fix will be included in the next official version of the component. Meanwhile, you can  substitute telerik.grid.editing.js file with the attached version. I have updated your telerik points too.

All the best,
Rosen
the Telerik team

[Joan Vilariño]

Hi there.

With the patch you supplied it works, but only partially. When the columns with the AdditionalFields are editable all is correct, but if the columns having the AdditionalFields are .Readonly() the AdditionalFields values won't be sent to the validator... I had to do something like this:

cl.Bound(o => o.MyAdditionalField).ReadOnly().ClientTemplate("<#=MyAdditionalField#><input type='hidden' name='MyAdditionalField' value='<#=MyAdditionalField#>' />"));

Is that the expected behavior??? I find it pretty complicated ...

Cheers

[Rosen]

Hello Joan Vilariño,

Yes this is expected. Remote validation requires the additional fields to be presents as input elements.

All the best,
Rosen
the Telerik team

[Juan Pablo Perez]

Hello Joan,

I used to have a problem similar to it and I solved it putting the Model as parameter instead of each parameter individually. MVC fills the values you have put in the attribute Remote.

Try something like this:

public ActionResult _comprobarImporte(TraspasoViewModel model)
       {
           return Json((model.Propuesto < 0)
                           ? (model.Importe >= model.Propuesto)
                           : (model.Propuesto >= model.Importe), JsonRequestBehavior.AllowGet);
       }

I hope this works for you.

Juan Pablo Pérez