Unable to consume WCF Data Service using Kendo Grid?

[Ranjit]

We are currently having issues calling the WCF data service from the Kendo Data Source object. 

Is there something wrong with this initialization? When running the developer tool in browser it returns 400 Bad Request from the service. 

Please help...



var dataSource = new kendo.data.DataSource({
        type: "odata",
        transport:
        {
            read:
            {
                url: "http://localhost:49266/AmRiscOnlineService.svc/tblLocations",
                dataType: "jsonp",
                data: { accId: '@ViewBag.AccountId' },
            }
        },
    });

[Iliana Dyankova]

Hi Ranjit,

The code snippet you provided looks OK, but I am afraid it is not enough to detect where the reason for the problem is. I think this code library project would be very useful for you - it illustrates remote CRUD data operations using WCF service. Please check it and let me know if the problem in your application still persist. 

 
Greetings,
Iliana Nikolova
the Telerik team

[Guy]

Iliana,

That's an ASMX service.  How about a WCF4 service?

Guy

[Fabien]

WCF Data Service does not support the query options $format and $callback needed to tell the service to return JSON instead of XML.
There is a workaround that consists to create a custom behaviour attribute that will handle these two query options.
Here is the blog post that describe the workaround: http://professionalaspnet.com/archive/2010/06/17/The-query-parameter-_27002400_format_2700_-begins-with-a-system_2D00_reserved-_270024002700_-character-but-is-not-recognized.aspx

[Guy]

Thank you, Fabien.  Most awesome help.

[hermann]

What about WCF Data Service 5?

I am desperately trying to create a WCF Data Service
with VS2012,
.NET 4.5
EntityFramework 5
WCF Data Service 5 (with default DBContext)

based  on the odata crud examples

var crudServiceBaseUrl = "/WcfDataService1.svc/Products",

    dataSource = new kendo.data.DataSource({

        type: "odata",

        transport: {

            read: {

                url: crudServiceBaseUrl,

                dataType: "jsonp"

            },

            update: {

                url: function (data) {

                    return crudServiceBaseUrl + "(" + data.ProductID + ")";

                }

            },

works with ObjectContext approach

but what is neccessary to make it run with
WCF Service based on DBContext ?

regards,
hermann

[Oksana]

Hi Fabien!
The workaround link at http://professionalaspnet.com/archive/2010/06/17... is not available anymore.
Please provide another example how to use self hosting WCF as data source.