Hello,

 I knew there was "set" function for kendo.data.ObservableObject, it could change value of specified field.

But after this action, we need call "sync" method for data source manually, and sync action will fire some events/ data bound again.

Is there another method, that we only hope sync value of specified field, without fire events and data bound again?

Thank you.

It would be really useful to be able to modify request parameters in the RequestStart event of the dataSource; this would be consistent with the functionality of the Kendo Tooltip RequestStart Event.

Wish to have a "reset" or "clear" method to restore a DataSource object to it's initial unpopulated state--specifically when used behind a search text box, and need to clear the datasource when the user removes all search text.

Add the options to open data source by pressing the "Down Arrow" in the keyboard in the next components: 
autoComplete/ dropDownList/ comboBox

I was using DataSource.Read with additional parameters to get data from server to load grid. It was working fine with Q1. But after upgrading libraries to Q3 it is not working. It passes "null" parameter value to controller.

this.dataSource.sync().done(function(){//fire after...}).fail(function(){//any time on fail...});

I want to see a sample that uses MySQL as the datasource.
Sample shoulse use views to get the data and stored procedures to update the datasource.
Stored procedures exists already in the DB no ORM procedures creation needed.

In order to clearly identify if a datasource operation is successful, 
two alternatives are possible:

1. Add success event to the datasource in order to get datasource operations separated from update, destroy, add. 

2. Enhance change event by error array. 
Currently, the change even is fired even in case of an error. So, at least an error array containing error messages should be available, together with a property "hasErrors".

IMHO it would be good to separate the DTOs and the serializer/deserializer into separate assembly packages and document the protocols used to communicate with telerik components as developers may create multi layered applications without having to deploy the full telerik package eg. in business logic layers or data access layers

It would be nice to be able to specify in a datasource filter two fields and an operator for the sake of data reporting. For example, where "completed date" is greater than "promised date" or "Actual cost" is greater than "estimated cost."

This sort of thing can be accomplished by calculated fields; a filter of where "cost overage" is greater than 0. The down side of the calculated field approach is all comparisons need to be pre-defined.