ajax with kendo datasource in jsfiddle using echo api - ajax

Question

I'm trying to implement an ajax based kendo datasource.
Getting errors like:
TypeError: e.schema is undefined
..when you exclude the schema property declaration...
OR
TypeError: r._observable is not a function
Above error happens when I try to write schema definition as follows:
schema:{
data:function(response){
return response;
}
The code I've used is as follows:
$(document).ready(function () {
var ds = kendo.data.DataSource({
schema: {
type:'json'
},
transport: {
type: 'json',
read: {
url:'/echo/json/',
type:'POST',
data:{
json: JSON.stringify(students),
delay:1000
},
contentType:'application/json',
processData:false
}
}
});
//stripped for sake of brevity
});
You can use the following fiddle for starts: http://jsfiddle.net/deostroll/3GqVR/4/
Positive I am missing something on the kendo configuration front...

Answer 1

A couple of issues:
You should use the new operator to instantiate a data source:
var ds = new kendo.data.DataSource({ /* options */ });
For some reason /echo/json/ didn't like the delay option. Removing it fixes it.
The dataSource option of the grid is never set.
Here is the updated fiddle: http://jsfiddle.net/3GqVR/9/