TextHandler handler = new TextHandler(); // This is where text storing happens and adding
public MainWindow()
{
InitializeComponent();
handler.CreateJsonFile();
DisplayToListBox();
// Below this adds Commandbinding which activates user presses copys text from listbox
CommandBinding cb = new CommandBinding(ApplicationCommands.Copy, CopyCmdExecuted, CopyCmdCanExecute);
listBox1.CommandBindings.Add(cb);
Application.Current.MainWindow.Closing += new CancelEventHandler(MainWindow_Closing);
}