[Solved] Dropdownlist template ajaxbound problem

[Joan Vilariño]

Hello.

I have a problem with dropdownlist templates in ajaxbound mode...

I use [UIHInt("myTemplate")] at the property like this:

public class myViewModel
{

     public string Name { get; set; }

     [UIHint("AddressComboTemplate")]
     public Address theAddress { get; set; }

}

Then I setup my grid:

    <%= Html.Telerik().Grid<myViewModel>()
        .Name("myGrid")
        .Pageable(page => page.PageSize(15)
        .Position(GridPagerPosition.Both))
        .DataBinding(databinding => databinding.Ajax()
            .Select("_Index","MotivoMovimientoSituacion"))
        .Columns(columns =>
                     {
                         columns.Bound(o => o.Name);
                         columns.Bound(o => o.theAddress).ClientTemplate("<#=theAdress.Description#>");
                     })
        %>

The Edit Template for my "Address" field (AddressComboTemplate.ascx) is:

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Address>" %>
<%= Html.DropDownListFor(o => o.Id, new SelectList(new AddressProxy().GetAll(),"Id","Description", (Model != null) : Model.Id ? String.Empty))%>

At runtime, when you edit (ajax) a row, the template gets rendered, but the selected value of the combo is always the first of the list, instead the row's current value... I've found a workaround for this, tapping the 'click' event of the Edit button and setting the value of the dropdownlist to the right one, but it makes me adding extra javascript and a "OnClientDataRow" event for the grid on every grid with one or more dropdownlist combos.

Is this a bug, or am I doing anything wrong? 

Thanks!

[Atanas Korchev]

Hi Joan Vilariño,

The grid will not select the dropdown value in this case as the name of the dropdown is not the same as the name of the property. You can check the sample project attached in this forum thread for ideas how to set the value of the dropdownlist.

Regards,
Atanas Korchev
the Telerik team

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[Joan Vilariño]

Ok... first thing first... the Name should be ok, since I get it automatically loaded at TryUpdateModel... that means that the form is sending the correct propertyname for the combo...

Second thing... you are doing something similar to what I was doing, the only difference is you access the grid data to get the item key, and i keep it in a tag in the <tr> at bind time...

So, from what you're telling me, if the <select> item has the correct name it would have to auto-set the right value on edit?

Thanks!