How to return a value with Dispatcher.Invoke?

Question

Anyone knows how to return a value from Dispatcher.Invoke in wpf? I want to return the selected index for a ComboBox.

Thanks!

Answer 1

This is my method to retrieve selected value for a combobox, how can I say delegate to return value?

    private object getValueCB(System.Windows.Controls.ComboBox cb)
    {
        object obj;


            if (!cb.Dispatcher.CheckAccess())
            {
                obj = cb.Dispatcher.Invoke(
                  System.Windows.Threading.DispatcherPriority.Normal,
                  new Action(
                    delegate()
                    {
                        obj = cb.SelectedValue;
                    }
                ));

                return obj;
            }
            else
            {
                return obj = cb.SelectedValue;
            }

    }