Null values being returned from Stored Procedure for SqlGeography field type

I have a stored procedure that returns a result set with entity definitions not mapped to any particular table. So I have created a class to return these objects as follows:

public class AdHocEntity : Entity<int>
{
     string _name;
     public string Name { get {return _name;} set {_name=value;}}

     string _description;
     public string Description { get{return _description;} set{_description=value;}}

     private SqlGeography _entityLocation;
     public SqlGeography Location {get{return _entityLocation;} set{_entityLocation=value;}}
}

The Stored Procedure definition looks like this:

create procedure dbo.sp_test_pro
    @routeid varchar(10)
as
    declare @weekday int    
    set @weekday= DATEPART ( weekday , getdate())   

    select 
        'vehicleid' as Name,
        dbo.terminals.description as Description,
            dbo.terminals.location as EntityLocation

        from dbo.terminalschedules .....

go

When I run the stored procedure using unitOfWork.FindBySql I get the correct number of entities returned. However the Location field for each entry is null.

Why is this?

Also, is there a way I can look at all questions I have posted on this forum through my profile?

Got it. I had to decorate _entityLocation field in AdHocEntity with the ValueField attribute.