Call mainWindow methtod from the page into a frame

Question

I have a main window with combobox data. Within the window I have a frame with a page, I need to refresh the data in the combobox (I have a method to do this) How do I call the method from the page?

in my MainWindow

    public  void getCustomers()
    {
        cb_Name.ItemsSource = ve.Folders;
        cb_Name.DisplayMemberPath = "Full_Name";
        cb_Name.SelectedValuePath = "Folder_Id";
        cb_Name.SelectedIndex = 0;
    }

in my page

    private void btn_insert_person_Click(object sender, RoutedEventArgs e)
    {

     }

Maybe now more clearly

Answer 1

Say you have a method like in your main window class:

public void RefreshComboBox();

When you're creating the new frame you can pass a "method pointer" to it.

Let's pretend you're currently initializing the frame like this:

var frame = new Frame();

You can change its constructor to this:

public Frame(Action refreshComboBox)

and initialize the frame like this:

var frame = new Frame(RefreshComboBox);

Save a reference to the "method pointer" in your Frame class and call it when needed.

More info about the Action delegate here: http://msdn.microsoft.com/en-us/library/system.action.aspx