protected void rpt_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
var o = e.Item.DataItem as Entidad;
e.With <HtmlInputButton>("boton",
boton => boton.Attributes["onclick"] = "alert('Editar " + o.ID + "')");
e.With <Label>("descripcion",
descripcion => descripcion.Text = string.Format("[{0}] {1}", o.ID, o.Descripcion));
}