Display nested objects through custom displayers in WPF

First off, I am very new to WPF. These are the objects I want to display:

public class IssueWithComments
{
    public Issue Issue { get; set; }

    public IReadOnlyList Comments { get; set; }

    public IssueWithComments()
    {
        Comments = new List();
    }
}

// Simplified
public class Issue
{
    public string Body { get; protected set; }
    public Uri HtmlUrl { get; protected set; }
    public IReadOnlyList Labels { get; protected set; }
    public Milestone Milestone { get; protected set; }
    public int Number { get; protected set; }
    public PullRequest PullRequest { get; protected set; }
    public ItemState State { get; protected set; }
    public string Title { get; protected set; }}
    public Uri Url { get; protected set; }
    public User User { get; protected set; }
}

public class IssueComment
{
    public string Body { get; protected set; }
    public Uri HtmlUrl { get; protected set; }
    public Uri Url { get; protected set; }
    public User User { get; protected set; }
}

The following is my XAML:

Within MainWindow.xaml






Within GithubIssue.xaml

































GithubIssueComment.xaml













C# Code:

Main.xaml.cs:

`private async void ViewIssues_Click(object sender, RoutedEventArgs e)
{
grid.Children.Clear();
var apiClient = new Octokit.GitHubClient(new Octokit.ProductHeaderValue("Issue-Managment"));
if (!string.IsNullOrWhiteSpace(userName.Text) && !string.IsNullOrWhiteSpace(repoName.Text))
{
var issuesClient = new IssuesWithCommentsClient(new Octokit.ApiConnection(apiClient.Connection));
var issues = await issuesClient.GetAllForRepositoryWithComments(userName.Text, repoName.Text);

Github

GithubIssue.xaml.cs:

public GithubIssue(IssueWithComments issue)
{
    InitializeComponent();
    this.DataContext = issue;

    var commentDisplayers = new List();
    foreach (var comment in issue.Comments)
    {
        commentDisplayers.Add(new GithubIssueComment(comment));
    }
    comments.ItemsSource = commentDisplayers;
}

This could be simplified with LINQ. How about:

var commentDisplayers = issue.Comments.Select(comment=>new GithubIssueComment(comment)).ToList();

// or
var commentDisplayers = (from comment in issue.Comments select new GithubIssueComment(comment)).ToList();

StackExchange Code Review Q#88473, answer score: 4