public async Task OnGet(int?id, int PickUpLocationId, int DropDownLocationId, DateTime reserveFrom, DateTime reserveTo)
{
Car = await carManager.GetCar((int)id);
ReserveFrom = reserveFrom;
ReserveTo = reserveTo;
this.PickUpLocationId = PickUpLocationId;
this.DropDownLocationId = DropDownLocationId;
TotalPrice = ((int)Math.Abs((reserveFrom - reserveTo).TotalDays) + 1) * Car.Price;
string userId = User.FindFirstValue(ClaimTypes.NameIdentifier);
PreviousBillingDatas = (await reservationManager.GetBillingDatasForUser(userId)).Select(b => new SelectListItem
{
Text = b.FirstName + " " + b.LastName + " " + b.Address + ", " + b.City,
Value = b.Id.ToString()
});
}
