DataSource has data but count() returns 0 and get() returns undefined

[Jesper]

I fetch data from the server using like so (the fetch url has been predefined using jQuery.ajaxSetup()):

var dataSourceStatistics = new kendo.data.DataSource({

    transport: {

        read: {

            data: {

                f:'getCustomerStats',

                fromDate:function () {

                    return kendo.toString(kendo.parseDate(calendarstart.value()), "yyyy-MM-dd")

                },

                toDate:function () {

                    return kendo.toString(kendo.parseDate(calendarend.value()), "yyyy-MM-dd")

                },

                custStats:null

            }

        }

    },

    schema: {

        data: function(data) {

            return data.result.custStats.Record;

        },

        model:{

            id: "Employee",

            fields: {

                Employee: "Employee",

                Value: "Value",

                ValueUsed: "ValueUsed",

                ValueLeft: "ValueLeft"

            }

        }

    },

    pageSize: 10

 

});

After I execute read() the DataSource contains data, and the objects look OK. 
Example:

[{"Employee":"John Doe","ValueUsed":"50","ValueLeft":"0"}]

But executing the method total() returns 0 and get(index) always returns undefined. 
What am I doing wrong?

[Jesper]

I now defined total() manually at initialization, and it works. But I seriously can't see why that should be necessary. Shouldn't total() just count the number of models that were successfully parsed when data was read from the remote?
get(index) still returns undefined. I'm beginning to feel that Kendo UI documentation isn't what it should be.

[Jesper]

I misread the documentation for get(). It expects an Id, not an int. D'Oh :)