Can I add custom read-only property to entity class?

Question

 

 

I have entity class called User and I manually added read-only property

public bool IsAdmin
{
 get{
  ...check to see if this user is admin
 } 
}

When I retrieve user as below,  InvalidOperationException thrown saying that "Cannot assign value to member 'IsAdmin'. It does not define a setter."

IMultipleResults results = ...
var values =  results.GetResult<User>();

Can't I add custom properties to generated class?

Answer 1

In part 1 of my series of articles about LINQ to SQL I describe how to create and use non-mapped properties in the partial entity classes :

• Non-mapped properties in partial entity classes

• Data shaping with non-mapped properties

Answer 2

Hi!

i'm trying to do these same custom properties, but with Linq queries.

public int ChildCount
{
        get
        {
                 return this.tbChild.Where(c=>c.IdFather == this.Id).Count();
        }
}

it's very slowly!!
Any ideias?

Thanks so much!!

DanieL!