Want to auto populate data from one combobox to another.

Feb 13 2018 3:16 AM

I have created 2 combobox and as i am a beginner i can not make such huge classes in WPF. I wanted to do a simple autopoulation without duplicate entries. I got the auto population part as i added one button to add the values in the 2nd combobox. but the problem of duplication still remains. can anyone help?