//Evento al presionar el boton AgregarHashtag
        protected void btnAgregarHashtag_Click(object sender, EventArgs e)
        {
            string hashtag = txtHashtag.Text;

            lblRestriccionHashtag.Visible = false;
            lblExitoHashtag.Visible       = false;

            //Verifica que no se encuentre vacío el textbox
            if (hashtag != "")
            {
                //Verifica si el primer caracter corresponde un #
                if (hashtag.Substring(0, 1) == "#" && !(hashtag.Contains(" ")))
                {
                    //Solicita al usuario
                    HttpCookie cookie = Request.Cookies["UserInfo"];
                    if (cookie != null)
                    {
                        solucion.idUsuario = Int32.Parse(cookie["idUsuario"]);
                    }
                    solucion.hashtag = hashtag;        //Asigna el hashtag
                    solucion.registroHashtag();
                    txtHashtag.Text         = "";      //Se limpia el textBox
                    lblExitoHashtag.Visible = true;
                }
                else
                {
                    lblRestriccionHashtag.Visible = true;
                }
            }
            else
            {
                lblRestriccionHashtag.Visible = true;
            }
        }