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[Solved] Custom binding and grouping

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kalvin asked on 21 Jul 2010, 11:31 AM

Hi,
I have problem with implementing custom binding and grouping with telerik mvc grid. i'm not found any sollution how to do that, that is why i made my own sollution, which dosen't work;/ and i really don't know why this is so.

I' using ajax with custom binnding, my method looks like:

[GridAction(EnableCustomBinding = true)]

public ActionResult _CustomBinding(GridCommand command)

{

IQueryable<Person> data = this.PrepareData().AsQueryable();

return View(new GridModel

{

Data = data.GroupBy(x=>x.FirstName),

Total = this.PrepareData().Count()

});

}

and view:

<%= Html.Telerik().Grid(Model)

.Name("Grid")

.Pageable(settings => settings.Total((int)ViewData["total"]))

.DataBinding(dataBinding => dataBinding

.Ajax()

.Select("_CustomBinding", "Defualt")

)

.EnableCustomBinding(true)

.Sortable().Groupable(grouping => grouping

.Groups(groups =>

{

//Group by Country

groups.Add(c => c.FirstName);

})

).Filterable()

%>

<%= Html.Telerik().Grid(Model)

.Name("Grid")

.Pageable(settings => settings.Total((int)ViewData["total"]))

.DataBinding(dataBinding => dataBinding

.Ajax()

.Select("_CustomBinding", "Defualt")

)

.EnableCustomBinding(true)

.Sortable().Groupable().Filterable()

%>

and i see grid without grouping and with white last collumn.

P.S i'm using 2010.1.518.

Regards.

5 Answers, 1 is accepted

answered on 25 Oct 2010, 01:43 PM

grouping.jpg

Hello,
I have a similar problem. I'm using Custom Binding and my own serailizer (a personal JsonResult, which uses my own serializer, not the default JavascriptSerializer). When a want to group my data, I have an empty column, and not the normal grouping "look" (see the attach file).
I find the error on the JSON result, on the "success" method on telerik.grid.js file. A correct JSON looks like this

{"data":[{"AggregateFunctionsProjection":null,"HasSubgroups":false,"Subgroups":[],"Items":[{"Id":2,"FirstName":"Arnold","LastName":"Schwarzenegger","Sexe":1}],"Key":"Schwarzenegger"},{"Key":"Willis","HasSubgroups":false,"Items":[{"Id":1,"FirstName":"Bruce","LastName":"Willis","Sexe":0},{"Id":3,"FirstName":"Steven","LastName":"Willis","Sexe":1}],"AggregateFunctionsProjection":null,"Subgroups":[]}],"total":3}

But my Json look like this

{"data":[{"Id":1,"FirstName":"Bruce","LastName":"Willis","Sexe":0},{"Id":2,"FirstName":"Arnold","LastName":"Schwarzenegger","Sexe":1},{"Id":3,"FirstName":"Steven","LastName":"Willis","Sexe":1}],"total":3}

Apparently needs some properties like AggregateFunctionsProjection or "Items".

Finally, is it possible to build this object with the classes on the Telerik.Mvc.dll ? I see some classes in the Telerik.Web.Mvc.Infrastructure.Implementation namespace, can I use them and how ?

Thanks