combobox inside a combobox item

[Wael]

i have a combo box that i need when i select one of it's items, it will open a new sub combo box to choose a sub item

 

is it feasible?

[Martin Ivanov]

There is no component that allows this, but you should be able to achieve with two (or more) RadComboBox instances and some custom code, based on your exact needs.

Can you send over a drawing that shows the expected visualization?