change
Fires when data is changed

Example

var dataSource = new kendo.data.DataSource({
    change: function(e) {
        // handle event
    }
});

To set after initialization

dataSource.bind("change", function(e) {
    // handle event
});
error
Fires when an error occurs during data retrieval.

Example

var dataSource = new kendo.data.DataSource({
    error: function(e) {
        // handle event
    }
});

To set after initialization

dataSource.bind("error", function(e) {
    // handle event
});