Best practice for dynamically adding controls through copying existent controls in WPF

Question

Hello!

I have a TabControl. While clicking a button I want to add a new TabItems to the TabControl. Among various techniques I've chosen to create UserControl inside of a DockPanel. Everything works fine, except for the location of control on a new TabItem is not 0 and it is not expanded on the main form resize. Everything is quite simple.

    <TabItem Header="new control">
        <DockPanel LastChildFill="True">
           <tc:TabItemTemplate/>
        </DockPanel>
    </TabItem>

And TabItemTemplate is also located inside a DockPanel, but it's not docked inside a TabItem. What's the catch?

Answer 1

Hi Dmitry,

I would suggest using TabControl.ItemTemplate, and bind TabControl.ItemsSource to ObservableCollection of ViewModels. When user clicks on a button, add new View Model instance to the collection. Refer to this article for more details: WPF Apps With The Model-View-ViewModel Design Pattern