在 linq 查询中将日期转换为 Shamsi

Question

我想在 Linq 查询中将公历日期转换为 Shamsi

这是我的查询

Contex = new RfidReaderEntities1();
var selectall = from myreads in Contex.V_DriverWithReadTags select new { myreads.RfidTagId, myreads.CarType, myreads.Plate, myreads.VisiteDate, myreads.Lname,myreads.shamsidate}; 
dataGridView1.DataSource = selectall.ToList();

我想将myreads.VisiteDate 转换为 Shamsi 日期。

Answer 1

首先下载FarsiLibrary.Utils，因为它将公历转换为Shamsi，没有任何错误将它的DLL文件添加到您的项目中以获取更多信息，请转到Here。

然后试试这个：

var selectall = from myreads in Contex.V_DriverWithReadTags select new {
            RfidTagId = myreads.RfidTagId,
            CarType = myreads.CarType, 
            Plate = myreads.Plate,
            VisiteDate = PersianDateConverter.ToPersianDate(myreads.VisiteDate), 
            Lname = myreads.Lname,
            shamsidate = myreads.shamsidate
        }; 

Answer 2

 Contex = new RfidReaderEntities1();


            var selectall = from myreads in Contex.V_DriverWithReadTags select new {
            RfidTagId = myreads.RfidTagId,
            CarType = myreads.CarType, 
            Plate = myreads.Plate,
            VisiteDate = PersianDateConverter.ToPersianDate((DateTime)myreads.VisiteDate), 
           // VisiteDate = myshamsifun.GetShamsiDateTime((DateTime)myreads.VisiteDate), 
            Lname = myreads.Lname,   
        };


            dataGridViewlisttoday.DataSource = selectall.ToList();