Entity Framework Foreign Key customization

Question

I am using Entity Framework 6.0, I know the purpose of FK, what I need is a little bit tweaking on it.

This is example code snippet

class CommonMaster
{
      public int ID {get;set;}
      public string Name {get;set;}
      public string Value {get;set;}
      public string Type {get;set;}
}

class BankDetails
{
  //all relevant fields
  public int CustomerType {get;set;}  //expected by ef

  public string CustomerType {get;set;} //the one i want
  [ForeignKey("CustomerType")] //expected by ef
  public virtual CommonMaster CommonMaster_CustomerType {get;set;}
}

Here by default the join will be

from BankDetails bd join CommonMaster cm on bd.CustomerType = cm.Value

Here by default ef queries

[table1_fk] = [table2_pk]

What I want is

[table1_somefield with codevalue]= [table2 _ code value]

If it isn't possible, can you please provide a best alternative to achieve this?

Thanks,

Answer 1

It depend on what strategy you want to use. For Code First it could be done like this. Foreign key EF