protected void Page_Load(object sender, EventArgs e)
{
PostsService posts = new PostsService();
var postsData = posts.All().ToList();
this.ListViewPosts.DataSource = postsData;
this.ListViewPosts.DataBind();
}
protected void CategoryLink_Click(object sender, EventArgs e)
{
string categoryName = ((LinkButton)sender).Text;
PostsService posts = new PostsService();
var postsData = posts.All()
.Where(p => p.Categories.Any(c => c.CategoryName == categoryName))
.ToList();
this.ListViewPosts.DataSource = postsData;
this.ListViewPosts.DataBind();
}