Conversion between Nullable types

Question

Is there a converter in .NET 4.0 that supports conversions between nullable types to shorten instructions like:

bool? nullableBool = GetSomething();
byte? nb         


        

Answer 1

I would write an extension method:

public static class Extensions
{
    public static TDest? ConvertTo(this TSource? source) 
        where TDest: struct 
        where TSource: struct
    {
        if (source == null)
        {
            return null;
        }
        return (TDest)Convert.ChangeType(source.Value, typeof(TDest));
    }
}

and then:

bool? nullableBool = true;
byte? nbyte = nullableBool.ConvertTo();