Question

I have one var variable which is having a single column and i want to make join that column with the database table.my code is as follows :

var notlinked = _client.Except(linked).ToList();
var result = (from e in iEnt.clientmasters 
              join g in notlinked on e.ClientID equals g.ClientID 
              select e).ToList();  

now notlinked is having a single column and depend on that i want to retrieve information from database so in the next line i am doing join to that table but when i execute it getting following error :

Unable to create a constant value of type ‘Anonymous type’. Only primitive types (‘such as Int32, String, and Guid’) are supported in this context.

suggest me some solution to this

Answer 1

Here is the sample application to find things. I have taken two list Customer and another is int list.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args) {


            List customers=new List();
            customers.Add(new Customer(1,"Jalpesh"));
            customers.Add(new Customer(2, "Kaushal"));
            customers.Add(new Customer(3, "Mahesh"));

            List intList=new List{1,2};


            var customerList = customers.Where(c => intList.Contains(c.Id));

        }


    }

    public class Customer
    {
        public int Id { get; set; }
        public string Name { get; set; }

        public Customer(int id,string name) {
            Id = id;
            Name = name;
        }
    }
}