Question

I want to get data from two tables with single Entity class. How??

public class HomeViewModel  
{ 
    [Key] 
    [Column("candidate_ID")] 
    public int candidateID { get; set; } 
    [Column("first_name")] 
    public string firstName { get; set; } 
    [Column("last_name")] 
    public string lastName { get; set; } 

    public string emailID { get; set; } 
    public string mb_country_code { get; set; } 
    public int mobile_no { get; set; } 
}

Above entity class holds 6 property where 3 property represents one table1 and 3 represents table2.
At database table 1 holds candidate_id as primary key and table two holds candidate_id as foreign key

Update: What i did is added DBContext class

public class EmployeeMonitoring : DbContext
{
    public DbSet<HomeViewModel> homeViewModel { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        modelBuilder.Entity<HomeViewModel>().Map(m =>
            {
                m.Properties(a => new { a.candidateID, a.firstName, a.lastName,a.status });
                m.ToTable("table1");
            }).Map(m =>
            {
                m.Properties(c => new { c.candidateID,c.emailID, c.mobile_no, c.mb_country_code });
                m.ToTable("table2");
        });
     }
}`

and at Controller Action i used following Linq to Entity Query

var data = db.homeViewModel.ToList();

But it returns nothing, i.e 0 count.

Answer 1

Check data in daatbase table first.

It is because you might not have related data in table2. i.e table1 primary key value (which is candidate_id) is not present in table2 foreign key candidateID…