This is just a dump of code for a post describing status by inheritance in C#

StatusByInheritance.cs

public abstract class ItemStatus {}
public class ProposedStatus : ItemStatus {}
public class ActiveStatus : ItemStatus {}
public class ObsoleteStatus : ItemStatus {}

public class MyShizzler
{
    public void DoShizzle(ProposedStatus status) { /* Do some Proposed shizzle, or maybe nothing */ }
    public void DoShizzle(ActiveStatus status) { /* Do some Activeshizzle */ }
    public void DoShizzle(ObsoleteStatus status) { /* Do some Obsolete shizzle, or maybe nothing */ }
}

var status = new ActiveStatus();
var shizzler = new MyShizzler();
shizzler.DoShizzle(status);


public class DibleyStatus : ItemStatus {}

    public void DoShizzle(DibleyStatus status) { /* Do some DibleyStatus shizzle, yo */ }


public abstract class StatusBuilder
{
    public abstract ItemStatus Build();
}

public class ProposedStatusBuilder : StatusBuilder
{
    public ProposedStatus Build() { return new ProposedStatus(); } 
}

public class ActiveStatusBuilder : StatusBuilder
{
    public ActiveStatus Build() { return new ActiveStatus(); } 
}

public class ItemStatusFactory
{
    private Dictionary<int, StatusBuilder> _builders;

    public ItemStatusFactory ()
    {
        _builders = new Dictionary<int, StatusBuilder>();
    }

    public void AddBuilder(int dbId, StatusBuilder builder)
    {
        _builders.Add(dbId, builder);
    }

    public ItemStatus Build(int dbStatus)
    {
        /* probably need some builder availability checking before returning */
        var noBuilderFound = !_builders.Keys.Contains(dbStatus); 
        if (noBuilderFound) throw invalidOperationException("No builder found for...");

        return _builders[dbStatus].Build();
    }
}

var factory = new ItemStatusFactory();
factory.AddBuilder(0, new ProposedStatusBuilder()); 
/* I dont like the mangic numbers but the Db status ID needs to get mapped somewhere! */
factory.AddBuilder(1, new ActiveStatusBuilder());
/* yada, yada... */
var status = factory.Build(myDto.StatusId);
myentity.Status = status;

public class ObsoleteStatusBuilder : StatusBuilder
{
    public ObsoleteStatus  Build() { return new ObsoleteStatus(); } 
}

factory.AddBuilder(2, new ObsoleteStatusBuilder());