Thank you for getting back to me.
provides the flexibility that you want.
As your data is in the form of a List<Employee>,
it will be best if you bind it to the RadComboBox
. This will not alter the collection in any way. Furthermore, you will be able to add your custom items, with the custom logic for selecting 'all' and 'none' of the employees.
Please take a look at the sample project I have attached. You will notice how a generic list is bound to the RadComboBox
, but at the same time I add my custom RadComboBoxItem
I hope this helps. Please contact me again if I can be of further assistance.
the Telerik team