entity framework custom data type mapping

Question

Given this code:

public class Car 
{
    public virtual int CarId { get; set; }
    public virtual string TypeName { get; set; }
    public ConvertableNullab         


        

Answer 1

"Make sure that it is a valid primitive property" - clearly the problem lies with your Nullable workaround - why not just make it a nullable double?

public class Car 
{
    public virtual int CarId { get; set; }
    public virtual string TypeName { get; set; }
    public double? Price { get; set; }
}