describe the steps to replicate the error
1. Add an RadRibbonBar Control and add a button and add an event handler onButtonClick
2. Add an RadDatePicker Control
3. compile and Run.
4. Select a date
5. place the cursor in the text box RadDatePicker control, or rather, place the focus on the control RadDatePicker
6. Immediately after the button click of RadRibbonBar (skip the error here)
Telerik Asp.net Version : Q1 2012
Test Browser: IE 9, Opera 11.64, Chrome, Etc
is necessary to comment that the control radribbonbar has many problems ... Telerik team, why they launched a control with too many errors and incomplete?