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ASP.NET 5 MVC 6 beta 8 regressions

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Landry asked on 30 Oct 2015, 11:26 AM

Hi,

I have just updated my ASP.NET 5 MVC 6 project to the beta8 using the provided beta8 2015.3.1026 nuget package for Telerik UI for ASP.NET MVC (https://www.nuget.org/packages/Kendo.Mvc/2015.3.1026).

There seems to have been many regressions in component fonctionnalities.

For instance, it is no longer possible to use Deferred initialization for grids or notifications.

@Html.Kendo().DeferredScriptsFor("grid", false)

The application does not throw any exception but the components are not initialized anymore and nothing appears...

I would suppose this is the case for all components allowing deferred initialization.

Also, it is no longer possible to use Edition (inline or popup) with grids.

I had to comment the folowing features in order for the page to not crash with a HTTP Error 502.3 - Bad Gateway

@(Html.Kendo().Grid<Country>()

.Name("grid")

//.Deferred()

.Columns(columns =>

{

columns.Bound(p => p.Description);

columns.Bound(p => p.Code);

columns.Bound(p => p.Region);

columns.Bound(p => p.Oecd);

columns.Bound(p => p.UE);

//columns.Command(command => { command.Edit().Text(" ").CancelText(" ").UpdateText(" "); command.Destroy().Text(" "); }).Width(100);

})

//.ToolBar(toolbar => toolbar.Create())

//.Editable(editable => editable.Mode(GridEditMode.InLine))

.Pageable()

.Sortable(sortable => sortable.SortMode(GridSortMode.MultipleColumn))

.Scrollable()

.Filterable(filterable => filterable.Mode(GridFilterMode.Row))

.HtmlAttributes(new { style = "margin-top:20px;height:400px;" })

.DataSource(dataSource => dataSource

.Ajax()

.PageSize(20)

.Model(model =>

{

model.Id(p => p.Id);

})

.Sort(sort => sort.Add("Description").Ascending())

.Read(read => read.Action("Get", "Countries"))

.Create(update => update.Action("Create", "Countries"))

.Update(update => update.Action("Update", "Countries"))

.Destroy(update => update.Action("Delete", "Countries"))

.Events(events => events.Error("error_handler"))

)

13 Answers, 1 is accepted

answered on 03 Nov 2015, 11:48 AM

Hello Landry,

Thanks for the report.

Unfortunately, the DeferredScripts issue is caused by change in the way View is rendered. It is rendered asynchronously and the widget is not able register it scripts before the DeferredScriptsFor is called. Thus, currently in order to use the Deferred Scripts feature you will need to rendered widgets by calling their Render method:

@{Html.Kendo().Grid<Country>()

.Name("grid")

.Deferred()

/*..*/

.Render();

}

Regarding the issue related to the editing. We were able to identify its cause and to address it - again it is due to a change in the ASP.NET MVC framework.

Regards,
Rosen
Telerik

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answered on 13 Nov 2015, 05:06 PM

demobugkendogridbeta8.zip

Here is a working solution that demonstrates the problem.

When we switch culture from en-US to fr-FR, the grid enables grouping and columnMenu when it should not.

answered on 19 Jan 2016, 05:08 PM

I think I'm having the same issue. I'm also using 2015.3.1026 with asp.net 5 MVC 6 and using the beta8. I can add simple controls to my views but If I attempt to add anything complex such as toolbar, grid it does not render when I preview my view. If I add the .Render() at the end of my script the whole section is underlined red indicating an error that reads "Identifier expected" and "Cannot implicitly convert type 'void' to 'object'. Consequently many of the objects such as dropdown and grid don't even appear in the intellisense. If I attempt to upgrade my telerik to 2016.1.112 I get many errors about assembly references not in the project. I can change my project.json back to 2015.3.1026 and they go away.