FastColoredTextBoxNS.RemoveLinesCommand.Execute C# (CSharp) Method

        public override void Execute()
        {
            var tb = ts.CurrentTB;
            prevText.Clear();

            ts.OnTextChanging();

            tb.Selection.BeginUpdate();
            for(int i = iLines.Count - 1; i >= 0; i--)
            {
                var iLine = iLines[i];

                prevText.Add(ts[iLine].Text);//backward
                ts.RemoveLine(iLine);
                //ts.OnTextChanged(ranges[i].Start.iLine, ranges[i].End.iLine);
            }
            tb.Selection.Start = new Place(0, 0);
            tb.Selection.EndUpdate();
            ts.NeedRecalc(new TextSource.TextChangedEventArgs(0, 1));

            lastSel = new RangeInfo(tb.Selection);
        }