AppointmentProposalNumber

KnownPropertyList.AppointmentProposalNumber field

指定发送了未被组织者接受或拒绝的反提案的与会者数量。 区域:Meetings 规范名称:PidLidAppointmentProposalNumber 替代名称:dispidApptProposalNum

public static readonly PidLidPropertyDescriptor AppointmentProposalNumber;

也可以看看