GNIDA.MainForm.AppendText C# (CSharp) Méthode

        private void AppendText(string text)
        {
            //some stuffs for best performance
            fastColoredTextBox1.BeginUpdate();
            fastColoredTextBox1.Selection.BeginUpdate();
            //remember user selection
            var userSelection = fastColoredTextBox1.Selection.Clone();
            //add text with predefined style
            fastColoredTextBox1.AppendText(text);
            //restore user selection
            if (!userSelection.IsEmpty || userSelection.Start.iLine < fastColoredTextBox1.LinesCount - 2)
            {
                fastColoredTextBox1.Selection.Start = userSelection.Start;
                fastColoredTextBox1.Selection.End = userSelection.End;
            }
            else
                fastColoredTextBox1.GoEnd();//scroll to end of the text
            //
            fastColoredTextBox1.Selection.EndUpdate();
            fastColoredTextBox1.EndUpdate();
        }