How do I Access Buttons inside a UserControl from xaml?

Question

At work I have several pages, each with buttons in the same places, and with the same properties. Each page also has minor differences. To that end, we created a userControl

Answer 1

The main problem is that Template components are initialized before mainwindow components.I mean all properties of the button in mainwindow are set after the button in template class is initialized. Therefore, as you said value sets to null. All I want to say is about sequence of initializing objects.If you make a trick such a way as follows ;

public partial class Template : UserControl
{
    private Button _btn ;

    public Template()
    {

    }

    public Button MyButton
    {
        get
        {
            return _button;
        }
        set
        {
            _btn = value;
            _button = value;
        }
    }
    protected override void OnInitialized(EventArgs e)
    {
        InitializeComponent();
        base.OnInitialized(e);

        this._button.Content = _btn.Content;
        this._button.Background = _btn.Background;
        this.Width = _btn.Width;
        this.Height = _btn.Height;
    }
}

It is going to work undoubtly.