var query = myDataContext.ChapterMeeting .GroupBy(cm => cm.ChapterID) .Select(g => new { g.Key, MinMeetingDate = g.Min(cm => cm.MeetingDate) });
var query = myDataContext.ChapterMeeting .GroupBy(cm => cm.ChapterID) .Select(g => new { g.Key, MinMeetingDate = g.Min(cm => cm.MeetingDate) });名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
