How to Add Items to combobox in various way in C#

[@CharlesChacko25]

how to disable and enable dropdowns based on values selected?

[@abdulmalikadem7794]

Thank you very much

[@48_ty_b_dharmendrasinhparm36]

How to add value in combox type in combox and press enter and value insert in combobox

[@fkko7590]

Thanks brotha :)