查找不同表的Startdate和Enddate之间的小时数

Question

TimeSheetData timesheetdata = new TimeSheetData();
TimeSheet timeSheet = new TimeSheet();
TimeSheetData timesheetdata = new TimeSheetData();
                        timeSheet.StartDate = thisWeekStart;
                        timeSheet.EndDate = thisWeekEnd;
                        timesheetdata.Date = dt;

                        string HourData = item.Value;
                        string TaskID = item.ID.Split(':')[0];
                        timesheetdata.TaskID = Guid.Parse(TaskID);
                        timesheetdata.TimeSheet = timeSheet;
                        timesheetdata.Hours = Convert.ToDouble(HourData);
                        db.TimesheetData.Add(timesheetdata);
                        db.SaveChanges();                  



var TMS = db.TimeSheets.Where(t => t.StartDate == thisWeekStart 
                                   && t.EndDate == thisWeekEnd).ToList();

我的表是：

• Timesheets（Guid，Startdate，Enddate）
• TimeSheetDatas（Guid，小时，日期，任务GUID，时间表指南）

我想在TimesheetDatas和StartDate（EndDate）之间找到小时（Timesheets）。

 Hours find = var TMS

Answer 1

你没有提供一些细节，但是你想要这样的东西;

var query = from ts in db.TimeSheets
join tsd in db.TimesheetDatas on ts.Guid equals tsd.TimesheetGuid
where ts.StartDate > thisWeekStart && ts.StartDate < thisWeekEnd
select tsd.hour