KbtterWPF.DirectMessage.CreateDM_Click C# (CSharp) Method

        private void CreateDM_Click(object sender, RoutedEventArgs e)
        {
            svc.GetUserProfileFor(new GetUserProfileForOptions { ScreenName = NewUserName.Text },
                (u, r) =>
                {
                    if (u == null)
                    {
                        MessageBox.Show("そのようなユーザーは存在しません", "ユーザー取得失敗");
                        return;
                    }
                    if (users.Contains(u)) return;
                    DMUserList.Dispatch(() =>
                    {
                        DMUserList.Items.Add(main.CreateUserPanel(u));
                        dmlist[u] = new List<TwitterDirectMessage>();
                    });
                });
        }