Append text to the beginning in the Rich Text Box

Question

private void button1_Click(object sender, EventArgs e)
{
    richTextBox1.AppendText(\"\\r\\n\");
    richTextBox1.Focus();
    string s = \"Enter \";
    richTextBo         


        

Answer 1

previous messages seems obsolete. I solve it by :

Paragraph newExternalParagraph = new Paragraph();
newExternalParagraph.Inlines.Add( new Bold(new Run("[" + hour.ToString() + ":" + minute.ToString() + "]"))
{
    Foreground = Brushes.Yellow
});
_consoleText.Document.Blocks.InsertBefore(_consoleText.Document.Blocks.FirstBlock , newExternalParagraph);