Bind one-to-many models to datagrids WPF

Question

I have models structure like this:

public class Book
{
    public List<Author> Authors { get; set; }

    public Book()
    {
        Authors = new List<Authors>();
    }
}

public class Author
{
    public string Name { get; set; }
}

I want somehow show the list of Books in 2 datagrids in WPF - One datagrid with books themself, when i select a row there - in second datagrids appears a list of Authors of the selected book.

How can I implement this? Probably I should use ObservableCollection, but how bind List to ObservableCollection?

Jawahar Jawahar · Accepted Answer · 2014-11-26T09:05:56

You should be having a ViewModel which has a collection of Books property and a SelectedBook property.

public class ViewModel
{
    public List<Book> Books { get; set; }

    public Book SelectedBook { get; set; }
}

And the XAML goes like below,

    <DataGrid ItemsSource="{Binding Books}"
              SelectedItem="{Binding SelectedBook, Mode=TwoWay}"/>
    <DataGrid ItemsSource="{Binding SelectedBook.Authors}"/>

Bind one-to-many models to datagrids WPF

3 Answers