WPF中的C＃UserControl

Question

Unfortunately, the UserControl is not displayed in my ToolBox. Since I have worked but with Windows Form, I have back remembers that you can create this UserControl also by code. And also tested in Windows Form where it has worked.

public partial class Einstellungcs : UserControl
{
    public Einstellungcs()
    {
        InitializeComponent();
        this.Dock = DockStyle.Fill;
    }
}

---

public partial class MainWindow : Window
{
    Einstellungcs settings = new Einstellungcs();
    public MainWindow()
    {
        InitializeComponent();
    }
            ......
}

---

private void Button_Click(object sender, RoutedEventArgs e)
{
    panel.ContentMenu(settings );
}

These Code snippets Should sometimes illustrate what I mean. Unfortunately, there is no more panel in WPF. So how can I do this in WPF? I currently use Canvas, but this is not the right one. How would someone have the solution what I must use or how I have to make it?

I would like to change the content area by clicking the button with a UserControl.Can someone explain to me how I can use the UserControl in WPF?

EDIT

If I click on the button "Vorschau" is to change the red area with a content. If I click on the button "Einstellung" a different content appears than before. It should change as the content always only in the red area, the rest should remain as it is.

Answer 1

In your MainWindow you need to put a ContentControl which will act as placeholder and after creating instance of the usercontrol set the content of the contentcontrol :

 <ContentControl x:Name="UserControlContainer"></ContentControl>

and then in code behind of Window inside the button click evebt, you can set the content property to use new user control following way:

Einstellungcs settings = new Einstellungcs();
this.UserControlContainer.Content = settings ;