Add item to binded combobox to list

Question

I have a combobox binded to a list like this

public List<CustomerLanguage> CurrentCustomerLanguageList
    {
        get { return _currentCustomerLanguageList; }
        set
        {
            _currentCustomerLanguageList = value;

            bsCustomerLanguages.DataSource = Presenter.CustomerLanguageToProxy(value);
            cbLanguage.DataSource = bsCustomerLanguages.DataSource;
            cbLanguage.DisplayMember = "LanguageName";
            cbLanguage.ValueMember = "Id";
        }
    }

On the form i have + - buttons which must allow to add or delete items inside combobox.

The problem is: i dont know how to add new item to binding source and the list without full refresh of combobox. Of course when i add, selected value must remains and no selectedvaluechanged event must be raised.

Answer 1

'bsCustomerLanguages' is a BindingSource ? In that case it should work if you set cbLanguage.DataSource = bsCustomerLanguages and add to bsCustomerLanguages directly