/// <summary>
/// 检查是否可以进行查询
/// </summary>
/// <returns></returns>
public string CanQuery()
{
var lastResult = LastQueryResult;
LastQueryResult = null;
if (FromStationCode.IsNullOrEmpty())
{
return("请选择始发站");
}
if (ToStationCode.IsNullOrEmpty())
{
return("请选择到达站");
}
//日期
if (!QueryStudentTicket && !ParamData.IsCommonTicketSell(CurrentDepartureDate))
{
AppContext.HostForm.ShowToast("超出预售期，无法正常查询，仅供12306系统维护期间值守查询用。", backColor: System.Drawing.Color.DarkRed, glowColor: eToastGlowColor.Red, timeout: 2000);
}
//席别选择有误
if (SelectedSeatClass.Count > 0 && EnableAutoPreSubmit && AutoPreSubmitConfig.SeatList.Count > 0 && AutoPreSubmitConfig.SeatList.Any(s => !SelectedSeatClass.Contains(s)))
{
var seats = AutoPreSubmitConfig.SeatList.Except(SelectedSeatClass).ToArray();
seats.ForEach(s => SelectedSeatClass.Add(s));
}
//出发时间和到达时间
if (DepartureTimeTo < DepartureTimeFrom)
{
return("出发时间的结束时间不得大于开始时间");
}
if (ArriveTimeTo < ArriveTimeFrom)
{
return("到达时间的结束时间不得大于开始时间");
}
//学生票？
if (QueryStudentTicket && (IsAutoSubmitEnabled && AutoPreSubmitConfig.Passenger.Any(s => s.TicketType != 3)))
{
return("选择了查询学生票，可是为嘛儿添加的乘客不全是学生嘞，你个臭流氓 o(>_<)o ~~");
}
LastQueryResult = lastResult;
return(null);
}