Subtext.Web.UI.Controls.PostComment.ResetCommentFields C# (CSharp) Method

        private void ResetCommentFields()
        {
            if (this.tbComment != null)
                this.tbComment.Text = string.Empty;

            if (this.tbEmail != null)
                this.tbEmail.Text = SecurityHelper.IsAdmin ? Config.CurrentBlog.Email : string.Empty;

            if (this.tbName != null)
                this.tbName.Text = SecurityHelper.IsAdmin ? Config.CurrentBlog.UserName : string.Empty;

            if(entry == null)
                entry = Cacher.GetEntryFromRequest(CacheDuration.Short);

            if (this.tbTitle != null)
                this.tbTitle.Text = "re: " + HttpUtility.HtmlDecode(entry.Title);

            if (this.tbUrl != null)
                this.tbUrl.Text = SecurityHelper.IsAdmin ? Config.CurrentBlog.HomeFullyQualifiedUrl.ToString() : string.Empty;

            HttpCookie user = Request.Cookies["CommentUser"];
            if (user != null)
            {
                tbName.Text = user.Values["Name"];
                tbUrl.Text = user.Values["Url"];

                // Remember by default if no-checkbox.
                if (this.chkRemember != null && this.chkRemember.Checked)
                {
                    this.chkRemember.Checked = true;
                }

                //Check to see if email textbox is present
                if (this.tbEmail != null && user.Values["Email"] != null)
                {
                    this.tbEmail.Text = user.Values["Email"];
                }
            }

            if (IsCommentsRendered)
            {
                if (entry.CommentingClosed)
                {
                    this.Controls.Clear();
                    this.Controls.Add(new LiteralControl("<div class=\"commentsClosedMessage\"><span style=\"font-style: italic;\">Comments have been closed on this topic.</span></div>"));
                }
                else
                {
                    tbTitle.Text = "re: " + HttpUtility.HtmlDecode(entry.Title);
                }
            }
            else
            {
                this.Controls.Clear();
            }
        }