ICSharpCode.AvalonEdit.TextEditor.ScrollToHome C# (CSharp) Method

        public void ScrollToHome()
        {
            ApplyTemplate(); // ensure scrollViewer is created
            if (scrollViewer != null)
                scrollViewer.ScrollToHome();
        }

        public void Set(TextEditor textEditor, IEnumerable<MulticastMessageViewModel> collection)
        {
            _ranges.Clear();

            var document = new StringBuilder();
            var settings = new List<CustomElementSetting>();

            foreach (var target in collection)
            {
                int startOffset = document.Length;

                {
                    string item1;
                    if (target.Option.State.HasFlag(MulticastMessageState.IsLocked)) item1 = "#";
                    else if (target.Option.State.HasFlag(MulticastMessageState.IsUnread)) item1 = "!";
                    else item1 = "@";

                    var item2 = target.Item.CreationTime.ToLocalTime().ToString(LanguagesManager.Instance.DateTime_StringFormat, System.Globalization.DateTimeFormatInfo.InvariantInfo);
                    var item3 = target.Item.Signature;

                    {
                        settings.Add(new CustomElementSetting("State", document.Length, item1.Length));
                        document.Append(item1);
                        document.Append(" ");

                        settings.Add(new CustomElementSetting("CreationTime", document.Length, item2.Length));
                        document.Append(item2);
                        document.Append(" - ");

                        settings.Add(new CustomElementSetting("Signature", document.Length, item3.Length));
                        document.Append(item3);

                        if (!Inspect.ContainTrustSignature(target.Item.Signature))
                        {
                            document.Append(" +");
                            document.Append(target.Option.Cost);
                        }
                    }

                    document.AppendLine();
                }

                {
                    document.AppendLine();
                }

                {
                    foreach (var line in target.Item.Comment
                        .Trim('\r', '\n')
                        .Split(new string[] { "\r\n", "\r", "\n" }, StringSplitOptions.None)
                        .Take(128))
                    {
                        foreach (var match in _uriRegexes.Select(n => n.Matches(line)).SelectMany(n => n.OfType<Match>()))
                        {
                            settings.Add(new CustomElementSetting("Uri", document.Length + match.Index, match.Length));
                        }

                        document.AppendLine(line);
                    }
                }

                {
                    document.AppendLine();
                }

                _ranges.Add(new CustomElementRange(startOffset, document.Length));
            }

            if (document.Length >= 2) document.Remove(document.Length - 2, 2);

            textEditor.Document.BeginUpdate();

            textEditor.Document.Text = "";
            textEditor.CaretOffset = 0;
            textEditor.SelectionLength = 0;
            textEditor.TextArea.TextView.ElementGenerators.Clear();
            textEditor.ScrollToHome();

            textEditor.Document.Text = document.ToString();

            var elementGenerator = new CustomElementGenerator(settings);
            elementGenerator.ClickEvent += (string text) => this.OnClickEvent(text);
            elementGenerator.SelectEvent += (CustomElementRange range) => textEditor.Select(range.Start, range.End - range.Start);
            textEditor.TextArea.TextView.ElementGenerators.Add(elementGenerator);

            textEditor.Document.EndUpdate();

            textEditor.CaretOffset = textEditor.Document.Text.Length;
            textEditor.TextArea.Caret.BringCaretToView();
            textEditor.ScrollToEnd();
        }