Kendoui DataSource odata $expand not working - kendo-ui

Question

I have a mobile listview bound to kendoui datasource pointing to an odata service. I have a $expand hint in the datasource config to expand "Patient" property of "Claim" object, but looking the url of the odata query, the kendoui datasource is not generating the $expand code in the querystring. How can I get the kendoui datasource to generate correct $expand instruction on the querystring?
OData query string genereated: http://localhost:1839/OData.svc/Claim?$callback=jQuery20207924230222124606_1374374358450&%24inlinecount=allpages&%24format=json&%24top=10
<script>
$(function () {
var app = new kendo.mobile.Application(document.body, {
transition: 'slide'
});
OData.defaultHttpClient.enableJsonpCallback = true;
var data = new kendo.data.DataSource({
type: "odata", // specifies data protocol
pageSize: 10, // limits result set
transport: {
read: "http://localhost:1839/OData.svc/Claim",
dataType: "json",
data: {
$expand: "Patient"
}
},
schema: {
model: {id: "Id"},
data: function (data) {
return data.d.results;
},
total: function (data) {
return data.d.__count;
}
},
pageSize: 10,
serverPaging: true,
serverFiltering: true,
serverSorting: true
});
$("#lst").kendoMobileListView(
{
template: "<strong>${data.ClaimNumber}</strong><br/>",
filterable: {
field: "ClaimNumber",
operator: "contains"
},
dataSource: data
});
});
</script>

Answer 1

The data and $expand belong inside the read object. You were getting close in your answer.
var dataSource = new kendo.data.HierarchicalDataSource({
type: "odata",
transport: {
read: {
// See http://www.odata.org/documentation/odata-v2-documentation/uri-conventions/ for OData URI conventions
// OData: ~/api/Users?$inlinecount=allpages&top=2
// OData: ~/api/Users?$inlinecount=allpages - includes odata.count
// OData: inline filtering: ~/api/Users?$filter=USERNAME eq 'asgro'
// to include hierarchical data, use the OData /api/UserGroups?$expand=USER
// To reduce the payload sice, the query ~/api/UserGroups will only include the USERGROUP entities, and not any navigation property content
url: "/api/UserGroups",
data: {
$expand: "USERS"
},
dataType: "json" // the default result type is JSONP, but WebAPI does not support JSONP
},

Answer 2

I added this right in the transport/read/url, rather than a separate data:
var dataSource = new kendo.data.HierarchicalDataSource({
type: "odata",
transport: {
read: {
// See http://www.odata.org/documentation/odata-v2-documentation/uri-conventions/ for OData URI conventions
// OData: ~/api/Users?$inlinecount=allpages&top=2
// OData: ~/api/Users?$inlinecount=allpages - includes odata.count
// OData: inline filtering: ~/api/Users?$filter=USERNAME eq 'asgro'
// to include hierarchical data, use the OData /api/UserGroups?$expand=USER
// To reduce the payload sice, the query ~/api/UserGroups will only include the USERGROUP entities, and not any navigation property content
url: "/api/UserGroups?$expand=USERS",
dataType: "json" // the default result type is JSONP, but WebAPI does not support JSONP
},
.
.
.

Answer 3

read: {
url: "http://localhost:1839/OData.svc/Claim",
dataType: "json",
data: {
$expand: "Patient"
}
}
The data only read options.