[Solved] Editor template not showing when editing

[Mattias]

Hi,
I think I have tried every possible way now to show the template but nothing works! :(
I have this model:

public class Resource
{
        [ScaffoldColumn(false)]
        public virtual Guid ID { get; private set; }

        [Required(ErrorMessage="Namn obligatorisk")]
        [StringLength(128)]
        [DisplayName("Namn")]
        [UIHint("TextBoxLarge")]
        public virtual string ResourceName { get; set; }

        [Required(ErrorMessage = "Klient obligatorisk")]
        [DisplayName("Klient")]
        [UIHint("DropDownList")]
        public virtual Client Client { get; set; }
}

And I have a editor template, DropDownList.ascx with the dropdownlist.
The grid looks like this:

<%
     Html.Telerik().Grid(Model)
        .Name("Grid")
        .DataKeys(keys => keys.Add(x => x.ID).RouteKey("id"))
        .ToolBar(commands => commands.Insert())

        .DataBinding(dataBinding =>
        {
            dataBinding.Server()
                .Select("Index", "Resource")
                .Insert("Insert", "Resource")
                .Update("Update", "Resource")
                .Delete("Delete", "Resource");
        })
        .Editable(editing => editing.Mode(GridEditMode.InForm))

        .Columns(columns =>
        {
            columns.Bound(x => x.ResourceName).Title(Resources.Shared.Resource);
            columns.Bound(x => x.Client.ClientName).Title(Resources.Shared.Client);
            columns.Bound(x => x.City.CityName).Title(Resources.Shared.City);
            columns.Bound(x => x.CreateDate).Title(Resources.Shared.CreateDate).ReadOnly();

            columns.Command(commands =>
                {
                    commands.Edit();
                    commands.Delete();
                }).Width(180).Title("").HtmlAttributes(new { @style = "text-align:right" });
        })
        .Render();
    %>

But when I edit a row in the grid it just showing the textbox for ResourceName but no dropdownlist for the Client.
Any ideas why?

Regards,
Mattias

[Atanas Korchev]

Hi Mattias,

You seem to have hit a well known ASP.NET MVC limitation. You can check my blog post which shows why it does not work by default and what the workaround is.

Regards,
Atanas Korchev
the Telerik team

[Mattias]

Thanks Atanas for the link, now I understand whats going on.

But how stupid this is! :( Do you know if this is the case in MVC 3 to?

[Atanas Korchev]

Hi Mattias,

 I think yes. The bug report in codeplex got closed as "by design".

Regards,
Atanas Korchev
the Telerik team

[Mattias]

Ok.

What do you think of this workaround?
Instead of making a complete editor template for the whole class I'm adding a "value" property to the class like this:

public class Resource
{
        [ScaffoldColumn(false)]
        public virtual Guid ID { get; private set; }

        [Required(ErrorMessage="Namn obligatorisk")]
        [StringLength(128)]
        [DisplayName("Namn")]
        [UIHint("TextBoxLarge")]
        public virtual string ResourceName { get; set; }

        [ScaffoldColumn(false)]
        public virtual Client Client { get; set; }

        [Required(ErrorMessage = "Klient obligatorisk")]
        [DisplayName("Klient")]
        [UIHint("DropDownList")]
        public virtual Guid ClientID { get; set; }
}

This is working but I am not sure it's a good solution?

[Atanas Korchev]

Hi Mattias,

 Yes, this is a viable workaround. The other option is to make a custom editor template for the Resource type. However I think your approach  involves less code.

All the best,
Atanas Korchev
the Telerik team