Kendo datasource change read url on request start - kendo-ui

Question

I am currently doing this to change the read url dynamically on my kendo datasource. The datasource is used for a kendoautocomplete text box and for each key typed the list of suggestions are fetched through a get request.
requestStart: function (e) {
var text = $('#txtMail').val();
e.sender.transport.options.read.url = "/Feed/AutoCompleteUser?text=" + text + "&limit=10";
}
This works fine the first time , but consequent request's are exactly same as the first request it never hits this piece of code. What am i missing?
Please advice.

Answer 1

You can just add a data parameter for your read request, like so, in this case, as the request is sent as a get, it will append the query with the fields inside your data object.
By adding the function like this, it will get called every time you make a request.
function getRequestParameters() {
return {
text: $('#txtMail').val(),
limit: 10
};
}
var dataSource = new kendo.data.DataSource({
transport: {
read: {
url: "http://demos.telerik.com/kendo-ui/service/products",
data: getRequestParameters,
dataType: "jsonp"
}
}
});
You can find more about configuring the datasource operations here: