dynamic html

public partial class Blogger_BlogPost : System.Web.UI.Page
{
    DBUpdate insertcontents = new DBUpdate();
    StreamWriter sw;
    string title;
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btnPublish_Click(object sender, ImageClickEventArgs e)
    {
        sw = File.CreateText(Server.MapPath(txtTitle.Text+".html"));
        sw.WriteLine("<h3>"+txtTitle.Text+"</h3>");
        sw.WriteLine(contentEditor.Content);
        sw.Close();