VSTalk.Engine.ViewModel.Messenger.ThreadRenderer.Model.ConversationModel.AddFirst C# (CSharp) Méthode

        public void AddFirst(ConversationSection section)
        {
            if (Document.Blocks.Count == 0)
            {
                _sections.Add(section);
                Document.Blocks.Add(section.Content);
            }
            else
            {
                _sections.Insert(0, section);
                var first = Document.Blocks.FirstBlock;
                Document.Blocks.InsertBefore(first, section.Content);
            }
        }