How to Implement a ListBox of Checkboxes in WPF?

Question

Although somewhat experienced with writing Winforms applications, the... \"vagueness\" of WPF still eludes me in terms of best practices and design patterns.

Despite pop

Answer 1

First you dont need a HeirarchicalDataTemplate for this. Just regular DataTemplate as Aaron has given is enough. Then you need to instantiate the TopicList ObservableCollection somewhere inside the constructor of the class. which makes the ObservableCollection alive even before you add data in to it And binding system knows the collection. Then when you add each and every Topic/CheckedListItem it will automatically shows up in the UI.

TopicList = new ObservableCollection(); //This should happen only once

private void InitializeTopicList( MyDataContext context )
{
    TopicList.Clear();

    foreach ( Topic topic in topicList )
    {
        CheckedListItem item = new CheckedListItem();
        item.Name = topic.DisplayName;
        item.ID = topic.ID;
        TopicList.Add( item );
    }
}