This how I finally did it
foreach (var item in PisterosLista)
{
var DatosRegistro = new T_Pisteros
{
PisteroID = item.PisteroID,
PisteroN = item.PisteroN
};
var num = db.Insert(DatosRegistro); //insert into new DB
}
solved How to read IEnumerable List values one by one in Xamarin forms?