nested user control in wpf without view and model

Dec 26 2018 6:11 AM

i have an application in wpf which is not based on mvvm. in this i am to use a usercontrol for chat message which is used in another usercontrol chatmessagelist and chatmessagelist use in mainwindow.xaml. i am not using mvvm and all code on code behind. how to use obsavablecollection for chatmessages in list. please help me out.

thanks