Grid Complex Model (Create/update model is empty)

[Oliver]

Hello,

create/update posts an empty model to the controller.

It was working in a very old asp.net mvc project. I setup a new asp.net core project. I spent some hours to fix this, but no luck.

Reading the data source is ok and the data is shown in column 'valuestream'. At the moment for 'Agenda' two values are shown, editable with a mutiselect.

 

 

Controller:

public ActionResult ManagerQuestionnaireCreate([DataSourceRequest] DataSourceRequest request, QuestionnaireViewModel rs)
{ 

....

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

Model:

View:

 

[Mihaela]

Hello Oliver,

I have tested the case by suign the follwoing MultiSelect editor, and it appears that the Model property "ManagerQnrGroup" is retrieved as expected at my end:

    <div class="k-edit-label">
        @Html.LabelFor(model => model.ManagerQnrGroup)
    </div>
    <div class="k-edit-field">
        @(Html.Kendo().MultiSelectFor(model => model.ManagerQnrGroup)
            .DataValueField("GroupId")
            .DataTextField("GroupName")
            .AutoBind(false)
            .TagMode(MultiSelectTagMode.Multiple)
            .DataSource(source =>
            {
                source.Read(read =>
                {
                    read.Action("GetGroups", "Grid");
                });
            })
        )
        @Html.ValidationMessageFor(model => model.ManagerQnrGroup)
    </div>

I am attaching a runnable ASP.NET Core sample, where you can test it locally.

Also, since the data type of the "ManagerQnrGroup" property is IEnumerable<QuestionnaireGroupViewModel>, you can try retrieving its values through a List:

        [AcceptVerbs("Post")]
        public ActionResult Create([DataSourceRequest] DataSourceRequest request, QuestionnaireViewModel rs, List<QuestionnaireGroupViewModel> ManagerQnrGroup)
        {

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

Regards,
Mihaela
Progress Telerik

[Oliver]

Hello Mihaela,

thank you very much for your help and the sample.

After taking a look at the sample , I've changed the IEnumerable to List and it works without problems.



Regards & have a nice day, Oliver