protected void btnInsert_Click(object sender, EventArgs e)
        {
            string query = "INSERT INTO Books";

            Dictionary <string, object> parametters = new Dictionary <string, object>();

            parametters.Add("Title", txtBookTitle.Text);
            parametters.Add("Author", txtBookAuthor.Text);
            parametters.Add("PublishDate", DateTime.Now);

            MySqlProvider.ExecuteSqlQueryInsert(query, parametters, delegate(int i)
            {
                grdResultFill();
            });
        }