OData binding for CreateEntity

[Chuck]

We are using the grid in a MVC app. I can get the Read, Update and Delete functions to work without issue. However every time we try to do an insert the entity being passed to the controller is null. Here is the code:

OData Controller:

protected override BroadcastEventViewModel CreateEntity(BroadcastEventViewModel entity)
        {
            var bcEvent = new Model.BroadcastEvent()
            {
                Id = entity.Id,
                Name = entity.Name,
                StartDate = entity.StartDate,
                EndDate = entity.EndDate
            };
            _repository.InsertBroadcastEvent(bcEvent);
            return entity;
        }

Index.cshtml:

var crudServiceBaseUrl = "/odata/BroadcastEvents";
        var pledgesModel = kendo.observable({
            dataSource: broadcastEventDataSource = new kendo.data.DataSource({
                type: "odata",
                transport: {
                    create: {
                        url: crudServiceBaseUrl,
                        dataType: "json",
                    },
                    read: {
                        url: crudServiceBaseUrl,
                        dataType: "json"
                    },
                    update: {
                        url: function (data) {
                            return crudServiceBaseUrl + "(" + data.Id + ")";
                        },
                        dataType: "json"
                    },
                    destroy: {
                        url: function (data) {
                            return crudServiceBaseUrl + "(" + data.Id + ")";
                        },
                        dataType: "json"
                    }
                },
                batch: false,
                serverPaging: true,
                serverSorting: true,
                serverFiltering: true,
                pageSize: 5,
                schema: {
                    data: function (data) {
                        return data.value;
                    },
                    total: function (data) {
                        return data["odata.count"];
                    },
                    errors: function (data) {
                    },
                    model: {
                        id: "Id",
                        fields: {
                            Id: { type: "number", editable: false, nullable: true },
                            Name: { type: "string" },
                            StartDate: { type: "datetime" },
                            EndDate: { type: "datetime" },
                        }
                    }
                },
                error: function (e) {
                    var response = e.xhr.responseJSON;
                    var message = response.Message;
                    //if (e.xhr.responseJSON["odata.error"].Message != null) {
                    //    message = e.xhr.responseJSON["odata.error"].Message;
                    //}
                    alert(message + "\n\n");
                }
            })
        });

        $("#broadcastEventGrid").kendoGrid({
            dataSource: broadcastEventDataSource,
            toolbar: ["create", "save", "cancel"],
            sortable: false,
            pageable: true,
            filterable: false,
            columns: [
               { field: "Id", title: "ID", width: 150 },
               { field: "Name", title: "Name", width: 200 },
               { field: "StartDate", title: "Start Date", width: 200 },
               { field: "EndDate", title: "End Date", width: 200 },
               {
                   command: ["edit", {
                       name: "Details",
                       click: function (e) {
                           // var tr = $(e.target).closest("tr");
                           //var data = this.dataItem(tr);
                           alert("Details for: " + e.target);
                       }
                   }], title: "Action",
               }
            ],
            editable: {
                createAt: "bottom",
                mode: "inline"
            }
        });

I have found tons of articles and examples using the ActionLinks, but nothing that would seem to tell me why this call to Create would not work.

Thanks for any help you can provide.
Chuck

[Nikolay Rusev]

Hello Chuck,

I'm afraid that from the code posted we are not able to determine what might be causing a issue. The following github project has sample implementation of CRUD operations with OData services which you can use as a reference.

If it doesn't help it will be best to send us a runnable sample where the issue can be observed. Thus we'll be able to debug it locally and assist you furher.

Regards,
Nikolay Rusev
Telerik