Can't receive a multidimensional array in ASP.NET.Core MVC controller method

Question

I have the following method in my ASP.NET Core Controller

public async Task<JsonResult> MyJsonResultMethod(int page,int take, int skip, IEnumerable<Sort> sort){

...

public class Sort
{
    public string field { get; set; }
    public string dir { get; set; }
}

My javascript on the front end Kendo UI Web grid does a get controller method

$("#grid").kendoGrid({
    dataSource: {
        type: "json",
        transport: {
            read: "/MyController/MyJsonResultMethod"
        },
        pageSize: 5,
        serverPaging: true,
        serverSorting: true
    },
    height: 550,
    sortable: true,

    pageable: {
        refresh: true,
        pageSizes: true,
        buttonCount: 5
    },

If I monitor it in fiddler I can catch the HTTPGet and see all the values are passed

GET http://localhost:62594/MyController/MyJsonResultMethod?take=5&skip=0&page=1&pageSize=5&sort%5B0%5D%5Bfield%5D=DocumentNumber&sort%5B0%5D%5Bdir%5D=asc

When I debug my controller method I can see all the properties passed to the method have the correct values apart from the IEnumerable<Sort> sort which is received as null. I tried changing it to Sort[] sort but result is still the same

From my understanding this is unique to asp.net core and they way kendo ui sends an array. I logged the call with Telerik support says the Kendo UI Web grid doesn't support asp.net core. I can't see the reason for this as Fiddler clearly sends the data. I just need to somehow get the parameter to support it.

Answer 1

I'm not sure the "sort[0][field]" is formatted properly for ASP.Core model binder to properly interpret it.

This is how I format and pass array data to a controller and get it to bind(in ASP.NET MVC, not Core).

Request data:

sort[0].field: DocumentNumber
sort[0].dir: asc
sort[1].field: SecondSortField
sort[1].dir: asc

Controller Action:

public async Task<JsonResult> MyJsonResultMethod(
    int page,
    int take,
    int skip,
    [Bind(Prefix = "sort")]IEnumerable<Sort> sort)

This formatting and action using [Bind] is the same way that the Kendo Grid passes the new/updated/deleted arrays to the server so I "copied" the format it when I needed to pass my own array and it works for me.