使用工作流C＃向CRM 365中的所有聯系人發送電子郵件生日？

Question

如何使用工作流c＃向CRM 365中的所有聯系人發送電子郵件生日？

我寫的代碼：

var today = DateTime.Today.AddYears(-90);
var contacts = from c in orgContext.CreateQuery<Contact>()
    where (c.BirthDate != null && c.BirthDate.Value.Month == today.Month)
    where (c.BirthDate != null && c.BirthDate.Value.Day == today.Day)
    select new { c.Id, c.LogicalName, c.BirthDate, c.FullName };

我在linq條件中收到錯誤：

無效的“ where”條件。 實體成員正在調用無效的屬性或方法

Answer 1

嘗試從日期中刪除Value屬性，然后使用ToList()將結果集轉換為列表

  var contacts = (from c in orgContext.CreateQuery<Contact>()
                   where (c.BirthDate != null && c.BirthDate.Month == today.Month
                                              && c.BirthDate.Day == today.Day)                      
                   select new { c.Id, c.LogicalName, c.BirthDate, c.FullName}).ToList();

Answer 2

您不需要“價值”。 見下面的代碼

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Xml;
using System.Xml.Serialization;


namespace Oppgave3Lesson1
{
    class Program
    {

        static void Main(string[] args)
        {
            Context orgContext = new Context();
            DateTime today = DateTime.Now;

            var contacts = from c in orgContext.CreateQuery<Contact>()
                           //remoived value
                           where (c.BirthDate != null && c.BirthDate.Month == today.Month)
                           where (c.BirthDate != null && c.BirthDate.Day == today.Day)
                           select new { c.Id, c.LogicalName, c.BirthDate, c.FullName };
        }
    }
    public class Context
    {
        public List<Contact> CreateQuery<Contact>()
        {
            return new List<Contact>
        }
    }

    public class Contact
    {
        public DateTime BirthDate { get; set; }
        public int Id { get; set; }
        public string LogicalName { get; set; }
        public string FullName { get; set; }
    }



}