Hello Sachin,
Thank you for writing back.
RadDropDownList does not use text blocks like
RadAutoCompleteBox. The RadAutoCompleteBox.
TextChanged event is fired every time a new token is added or removed. Hence, you can extract the tokens splitting by the delimiter. I think that
RadCheckedDropDownList may be suitable for your case which combines
RadDropDownList and
RadAutoCompleteBox in order to provide functionality to check items in the drop down area and tokenize them in the text area. You can refer to the following help article:
http://www.telerik.com/help/winforms/dropdown-and-listcontrol-getting-started.html
I hope this information helps. If you have any additional questions, please let me know.
Regards,
Dess
Telerik