Telerik RadComboBox with CheckBox

Here is some useful links to put ComboBox inside RadDropDownList.
(1) Using CheckBoxes for multi-item selection - ComboBox Code Library - RadControls for ASP.NET and ASP.NET AJAX

(2) CheckBox inside a RadcomboBox - Combobox Forum - ASP.NET Classic Controls

(3) Implementing checkbox items in RadComboBox - RadControls for WinForms (Telerik Knowledge Base)

(4) Checkbox in RadComboBox - Combobox Forum - ASP.NET Classic Controls

(5) Count the Checkbox checked in a radcombobox with Javascript - Combobox Forum - ASP.NET Classic Controls

- Check all checkbox in RadCombobox

(1) Checkbox in RadComboBox - Combobox Forum - ASP.NET Classic Controls

(2) Looping through the comboBox with checkbox inside in javascript - ComboBox Forum - ASP.NET Controls

(3) Select All items in checkbox in combobox - ComboBox Forum - ASP.NET Controls

(4) Combobox with checkboxes and select all - ComboBox Code Library - RadControls for ASP.NET and ASP.NET AJAX

(5) ComboBox Checkboxes - Combobox Forum - ASP.NET Classic Controls

Telerik RadComboBox Fetch Value by Javacript

Here is some useful links which shows to fetch telerik RadComboBox value by javascript.

(1) ASP.NET Controls - ComboBox Forum - Radcombo: I cann't get radcombo selected value using javascript

(2) Accessing the combo on the client-side when it resides in a grid/formview/etc.

(3) ASP.NET Classic Controls - Combobox Forum - Changing Combobox selected value on the client programatically

(4) ASP.NET Classic Controls - Combobox Forum - ComboBox SelectedValue in Javascript

(5) Client-Side Basics

(6) RadComboBox object

(7) ComboBox SelectedValue in Javascript - Combobox Forum - ASP.NET Classic Controls