Editing / updateting grid in a details template not working..

[Ole]

Hi,

With this viewcode I am trying to create a grid hierachy to be editable. The first level grid works , but the 2.nd level does not Update when creating/editing,  I get this ModelState error when runnig ReviewCategory_Update , " The parameter conversion from type 'System.String' to type 'Reviews.Models.ReviewCategory' failed because no type converter can convert between these types. " , 'Reviews.Models.ReviewCategory'  is the class used to populate the 2.nd level grid.

<ul data-role="listview" data-inset="true">

    <li data-role="list-divider">Navigation</li>

    <li>@Html.ActionLink("About", "About", "Home")</li>

    <li>@Html.ActionLink("Contact", "Contact", "Home")</li>

</ul>

 

@(Html.Kendo().Grid<Reviews.Models.Review>().Name("ReviewGrid").Columns(columns =>

{

     

    columns.Bound(p => p.Customer);

    columns.Bound(p => p.Location);

    columns.Bound(p => p.Title);

    columns.Command(command => { command.Edit(); command.Destroy(); }).Width(200);

     

})

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

    .DetailTemplate(detail=>detail.ClientTemplate(

        Html.Kendo().Grid<Reviews.Models.ReviewCategory>()

            .Name("ReviewCategory_#=ReviewId#")

            .Columns(columns=>

            {

                columns.Bound(o => o.TableNo);

                columns.Bound(o => o.Category);

                columns.Bound(o => o.Comment);

                columns.Command(command => { command.Edit(); command.Destroy(); }).Width(200);

            })

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

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

            .Pageable()

            .Sortable()

            .Scrollable()           

            .DataSource(dataSource => dataSource

                .Ajax()

                    

                    .Events(events => { events.Error("error_handler"); })

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

                    .Create(update => update.Action("ReviewCategory_Create", "Home", new  { id = "#=ReviewId#" }))

                    .Read(read => read.Action("ReviewCategory_Read", "Home", new { id = "#=ReviewId#" }))

                    .Update(update => update.Action("ReviewCategory_Update", "Home"))

                    .Destroy(update => update.Action("ReviewCategory_Destroy", "Home"))

                 

                )

                .ToHtmlString()

         

))

 

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

    .Pageable()

    .Sortable()

    .Scrollable()

    .DataSource(dataSource => dataSource       

        .Ajax()

            .Events(events => { events.Error("error_handler"); })

        .Model(model=>model.Id(p=>p.ReviewId))

        .Create(update=>update.Action("Review_Create","Home"))

        .Read(read => read.Action("Review_Read", "Home"))

        .Update(update => update.Action("Review_Update", "Home"))

        .Destroy(update => update.Action("Review_Destroy", "Home"))

    )

)

<script type="text/javascript">

    function error_handler(e) {

        if (e.errors) {

            var message = "Errors:\n";

            $.each(e.errors, function (key, value) {

                if ('errors' in value) {

                    $.each(value.errors, function () {

                        message += this + "\n";

                    });

                }

            });

            alert(message);

        }

    }

 

    function dataBound() {

        this.expandRow(this.tbody.find("tr.k-master-row").first());

    }

 

 

 

</script>               

And this controller:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

using Kendo.Mvc.UI;

using Kendo.Mvc.Extensions;

using Reviews.Models;

using System.Data.Metadata.Edm;

using System.Data.Objects.DataClasses;

 

namespace Reviews.Controllers

{

    public class HomeController : Controller

    {

        ReviewModelContainer reviewContext = new ReviewModelContainer();

         

        public ActionResult Index()

        {

            ViewBag.Message = "Modify this template to jump-start your ASP.NET MVC application.";

 

            return View();

        }

 

        public ActionResult Review_Read([DataSourceRequest] DataSourceRequest request)

        {

            //return Json(SessionProductRepository.All().ToDataSourceResult(request));

            return Json(reviewContext.ReviewSet.ToDataSourceResult(request));

        }

 

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult Review_Create([DataSourceRequest] DataSourceRequest request, Review review)

        {

            if (review != null && ModelState.IsValid)

            {

                reviewContext.AddToReviewSet(review);

                reviewContext.SaveChanges();

            }

 

            return Json(new[] { review }.ToDataSourceResult(request, ModelState));

        }

 

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult EditingInline_Update([DataSourceRequest] DataSourceRequest request, Review review)

        {

            if (review != null && ModelState.IsValid)

            {

                int currentid = review.ReviewId;

                Review target = reviewContext.ReviewSet.Where(p => p.ReviewId == currentid).First();

                if (target != null)

                {

                    target.Customer = review.Customer;

                    target.Location = review.Location;

                    target.Title = review.Title;                   

                    reviewContext.SaveChanges();

                }

            }

 

            return Json(ModelState.ToDataSourceResult());

        }

 

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult EditingInline_Destroy([DataSourceRequest] DataSourceRequest request, Review review)

        {

            if (review != null)

            {

                reviewContext.DeleteObject(review);

                reviewContext.SaveChanges();

            }

 

            return Json(ModelState.ToDataSourceResult());

        }

 

        public ActionResult ReviewCategory_Read(int id, [DataSourceRequest] DataSourceRequest request)

        {  

            EntityCollection<Models.ReviewCategory> categories = reviewContext.ReviewSet.Where(Review => Review.ReviewId == id).First().ReviewCategory;

            return Json(categories.ToDataSourceResult(request));

        }

 

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult ReviewCategory_Create(int id, [DataSourceRequest] DataSourceRequest request, ReviewCategory category)

        {

            if (category != null && ModelState.IsValid)

            {

                category.Review = reviewContext.ReviewSet.Where(t => t.ReviewId == id).First();

                reviewContext.AddToReviewCategorySet(category);

                reviewContext.SaveChanges();

            }

 

            return Json(new[] { category }.ToDataSourceResult(request, ModelState));

        }

 

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult ReviewCategory_Update([DataSourceRequest] DataSourceRequest request, ReviewCategory category)

        {

            if (category != null && ModelState.IsValid)

            {

                int currentid = category.Id;

                ReviewCategory target = reviewContext.ReviewCategorySet.Where(p => p.Id == currentid).First();

                if (target != null)

                {

                    target.TableNo = category.TableNo;

                    target.Category = category.Category;

                    target.Comment = category.Comment;

                    reviewContext.SaveChanges();

                }

            }

 

            return Json(ModelState.ToDataSourceResult());

        }

 

 

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult ReviewCategory_Destroy([DataSourceRequest] DataSourceRequest request, ReviewCategory category)

        {

            if (category != null)

            {

                reviewContext.DeleteObject(category);

                reviewContext.SaveChanges();

            }

 

            return Json(ModelState.ToDataSourceResult());

        }

 

 

 

 

 

 

        public ActionResult About()

        {

            ViewBag.Message = "Your quintessential app description page.";

 

            return View();

        }

 

        public ActionResult Contact()

        {

            ViewBag.Message = "Your quintessential contact page.";

 

            return View();

        }

    }

}

Any idears of why this is comming...
Thanks for your help !.....

Best Ole

[Ole]

Hi,

solved this problem,  by renaming the category input parameter to categoryModel in the ReviewCategory_Update controller method.

The problem was that a property in the model also was called category and conflicting with input parameter. 

Now a new problem has come. My Model is entity framework based and when I update a review model.state.isvalid is false that there are no entity keys.

Here is the JSON the web client sends for an update

sort=&group=&filter=&ReviewID=4&Customer=new+&Location=new&Title=new23&EntityState=2&EntityKey.EntitySetName=ReviewSet&EntityKey.EntityContainerName=ReviewModelContainer&EntityKey.EntityKeyValues%5B0%5D%5BKey%5D=ReviewID&EntityKey.EntityKeyValues%5B0%5D%5BValue%5D=4&EntityKey.IsTemporary=false&EntityKey%5BEntitySetName%5D=ReviewSet&EntityKey%5BEntityContainerName%5D=ReviewModelContainer&EntityKey%5BEntityKeyValues%5D%5B0%5D%5BKey%5D=ReviewID&EntityKey%5BEntityKeyValues%5D%5B0%5D%5BValue%5D=4&EntityKey%5BIsTemporary%5D=false

As far as I can see the entitykey is there 3 times.
Is this a bug ?,
Is EF not supported in mvc/Kendo ?.

Best
Ole

[Nikolay Rusev]

Hello Ole,

Unfortunately we are not sure how to reproduce this behavior. Can you provide us with a sample runnable app which demonstrate described behavior? Thus we'll be able to assist you further.

All the best,
Nikolay Rusev
the Telerik team

[Ole]

Hi,

I have placed a support ticket with files..

ticket ID 552602